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Small Block Mopar Aluminum Heads are high performance aluminum heads for small block Mopar engines. They offer increased airflow and cooling compared to stock heads, and are a popular choice for street and strip applications.
12 Best Small Block Mopar Aluminum Heads
Flo-Tek Cylinder Head SBC Straight Assembed 102-505
Speedmaster PCE281. 2146: Cylinder Heads, As-Cast, Assembled, Aluminum, 65cc Chamber, 170cc Intake Runner, Rectangular Port, Chrysler, Dodge, Plymouth, Small Block, Pair – Speedmaster as-cast cylinder heads offer improved power throughout the entire rpm range for greater throttle response and top-end performance.
Speedmaster as-cast cylinder heads are designed for entry-level street/strip applications and are available for popular V8 engines (bare or assembled). Order the model recommended for fitment with your year/make and engine size.
Features and benefits Include:Bronze valve guides. CNC-finished faces and bolt holes for extreme accuracy. T6 heat-treated gravity die-cast construction (alloy heads only). OEM accessory bolt patterns.
Plenty of material for upgrading to larger horsepower applications. Machined for screw-in studs and guide plates. Flame-hardened valve seats for use with all fuel.
Heads look okay as far as looks. The valve spring seat pressure is 140, Speed master says these are for a hydraulic flat tappet, excessive seat pressure for application. The seat is as wide as the face of the valve, longevity is compromised.
Going to machine shop to correct seat and changing springs to 1. 250 springs with 115 Lbs. seat pressure. The larger 1. 460 diameter spring on this head will not clear a factory rocker arm. Poor description of cylinder head on Summits end.
Heads look great, no major parting lines in runners, machining is very good. Only issue was the sales write up which talks about the large intake valves. Specifications page shows the intake valve size at 2.
202″ which is a major error. Should read 2. 02″ with head fitting all standard geometry rocker arms. I hesitated from purchase of these heads for a couple years due to the over large valve size. This should be fixed in all future product information if this gets to the supplier.
Our goal is to provide products made with the finest material and consistent and high quality processes. Features 180CC intake runners 64CC combustion chambers Angle plug 202 And 160 stainless valves Performance springs good to 550″ lift 5 Angle valve job Compatibility Small Block Chevrolet Specifications Weight: 22 lbs Age Group: adult.
The first thing I noticed, is the guideplates will not line up the PR, lifter and rocker. No mater how many times you try to align your valve train, you will see a few push rods at about 20 degrees off center.
The reason for this is you have to move a Pushrod on a few cylinders away from the casting which puts them at a significant angle. The next issue I noticed is they suggest buying Felpro 1255 intake manifold gaskets, they do not line-up with the intake runners, alot of trimming involved, the next issue is you cannot move the gasket high enough on the head to line up the intake manifold blot holes, so I had to enlarge all of the bolt wholes to get the gasket in the right place.
None of these are show stoppers, but having been an engine builder for 45yrs, there are too many small issues for me to be comfortable with them. Spend the money and buy a proven product.
Perfect fitment, good quality heads on a budget! I recommend purchasing ARP studs and guideplates for perfect rocker alignment. The supplied ones are generic and poor fitting. The heads alone are excellent fit and quality.
I was actually pleasantly surprised at the swirl polished valves and the large spring pockets for if you want to run larger springs with a monster cam! I think I’m in love, lol!!.
It’s not a good time to be building a performance engine. The supply chain issues are eliminating a lot of choices. I passed over a different set of heads at the recommendation of my machinist. These were available in stock and have the right size intake valves so I grabbed them instead.
They show to be suitable for the 221-302 Ford Small Block. But the springs they come with are for a hydraulic roller cam. I’m using a fairly mild flat tappet cam, so growing the installed height of the springs by 60 or 70 thousandths woul put both the seat pressure and open pressure weill within specs for a flat tappet cam.
The intake valves all have. 09 of shims installed so they look good. Exhausts have only a. 030 shim. So I’m into changing springs, retainers, locators, etc. on a brand new set of heads. Suddenly these heads aren’t so appealing.
I personally don’t think a prospective buyer should have to learn about this issue by reading reviews. It should be in the product description and specs.
I installed these on a factory 302 HO in my ’94 Mustang. At idle when vacuum is the highest the valve guides leak lots of oil into the intake. After idling for a couple of minutes the engine will start smoking horribly.
I first installed an oil trap in the PVC thinking something went wrong with the piston rings. It collects next to nothing. I called AFR about the problem and their only suggestion is to install a crankcase vacuum pump.
The problem is the oil drain back passage has very poor alignment with the block and the valves are sitting in a pool of oil. When the vacuum is high, the intake is sucking oil through the valves. A borescope down the intake revealed lots of oil in the intake runners near the valves.
I HAD TO CHANGE OUT THE SPRINGS FOR ONES WITH MORE PRESSURE DUE TO VALVE FLOAT AND I AM ONLY RUNNING AN E303 CAM. WITH THE STIFFER SPRINGS I REALIZED THE PEDESTAL MOUNT ROCKERS WOULD MOST LIKE FAIL SO I MACHINED THE PEDESTAL PADS, DRILLED AND TAPPED AND INSTALLED HELI COILS FOR ROCKER STUDS.
IF YOU DO THIS BE SURE TO USE PERMATEX #2 ON THE INTAKE STUDS. DON’T USE ANYTHING ELSE OR IT WILL LEAK. I KNOW FROM EXPERIENCE. THE NEXT ISSUE WAS VALVE SPRING INSTALL HEIGHT. ONE WAS OFF BY. 015 AND THE REST WERE.
030 AND 2 OF THEM WERE. 045. THAT IS UNACCEPTABLE IN MY BOOK. THE FIRST SET I PURCHASED WERE LIKE THIS AND I INSTALLED WITHOUT CHECKING THEM. I SENT THEM RIGHT BACK. THE NEXT ISSUE IS THE RECOMMENDED INTAKE GASKET FEL-PRO 1262.
The gaskets do not indicate which side goes out so be careful and don’t do what I did and install them with the raised seal facing the intake side. I assumed that’s how they went and I also used the end seals.
Both of these options caused an internal vacuum leak because my intake sat low and the end seals did not let the intake ports seal like they should have. My fault for not setting the intake on the engine to check my end gaps.
Install the gaskets with the raised seal towards the head and it will fit the ports much better. if you have over. 125 of gap at the front and rear ends and you are running a blower or a turbo then I would suggest making some spacers to take up the gap on the ends because anything over.
125 of silicone is likely to blow out. Other than this the heads flow nicely on the street. I would however like to be able to buy a set of heads and not have to go through them like I had to with these.
Summit Racing SUM-162111: Cylinder Head, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevy, 302, 327, 350,. 575 in. Hyd Roller Pair – Don’t sacrifice quality for a low price–get both with our Summit Racing 64cc aluminum cylinder heads for small Chevy.
The lightweight heads are cast from A-356 aluminum alloy and have 200cc intake ports, 64cc combustion chambers, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas.
They’re also end-milled and drilled for accessories. The fully assembled heads have 2. 02 in. intake and 1. 60 in. stainless steel exhaust valves, valve springs, 7 degree valve locks, 3/8 in. rocker arm studs, and 5/16 in.
So after having these heads on 3 different SBC engines I am super happy even after 2 years of racing. First was my 350, then my 383, AND lastly my 406. Between those engines gained significant HP with these heads.
Best of all for those with a 400 SBC like I now have, the awesome thing is that these heads don’t need drilled for stream holes. Yes these are Brodix IK200 heads with Summit logo on them, and summit tech then called Brodix to confirm that the heads did not require drilling for steam holes.
The only modification for 400 SBC is the head gasket needs an extra large hole drilled out of existing water hole in block passage to increase coolant flow (Felpro has the diagram for this on them). My 406 runs cold and is a beast with these heads easily keeping me in low 12’s on pump gas! My 406 has a solid cam and just needed machine shop to apply proper shim height for spring pressure, but again these springs with work with hydraulic flat tappet cams and solid flat tappet cams by making shim changes.
Will always buy these Summit heads over my name brand Edelbrocks any day! Read other reviews about CNC’d areas and excellent quality.
Bought these heads. Opened box to see tag, designated for hydraulic roller cam , with a. 575 lift, not for flat tappet camshaft. This would mean spring pressures are not for flat tappet cams. Summit needs to research this matter.
There does not seem to be any difference between part number 162111 and 162112.
I put a set of these on a stock a stock ‘75 L48 C3 Corvette. I also added a Holley Street Dominator intake and a Holley 670 Street Avenger carb. Runs beautifully. Really woke the L48 up. One thing I do recommend is NOT to use the intake gaskets that come with them.
Mine leaked vacuum. I replaced the intake gaskets with Edelbrock set I had on the shelf and they sealed up great. A Felpro set would be great as well. Black RTV worked for me too.
200 Series Aluminum Cylinder Heads Small Block Chevy As-Cast 200cc Intake Ports 64cc Combustion Chambers 2. 02 inch Intake / 1. 60 inch Exhaust Valves 3/8 inch Rocker Arm Studs. 575 inch Max Lift Steel Retainers Assembled 2/pkg Additional Cylinder Head Specifications Valve Seal Material: Viton Spark Plug Configuration: Angle Plut Maximum Spring Lift:
So I bought this set of heads with high hopes, and a small budget. So far they seem ok but I haven’t ran them yet. When I received I have them a once over and discovered that one of the heads chamber volume was 69cc’s and the other was 64 on the money.
I contacted customer service and they were great at fixing the problem so I decided to keep them. Now I am installing my push rods. Well the guides aren’t lining up very well, and most need adjustment.
Others require modification with a file just to install push rod without the rods hitting or rubbing the casting. It’s not much, but I do have to file it. I expected that at minimum I could bolt them on and run them.
But that’s not the case. So far them seem ok but if you’re not familiar with this type of work, or if you don’t have the proper tools these heads aren’t for you and should buy something better. I am already looking at getting AFR heads and I haven’t even ran these yet.
I wanted to share this with you guys so you don’t just install them out of the box and run them. You might have large issues later if you do. In my photo is shows the clearance, but this is only after I had filed it.
You get what you pay for in the long run. Initially they ran as good as the equivalent Edelbrock Performer RPM heads in my 12 second bracket cars. However, I just found that the valve seats are failing and falling apart and wasted the pistons.
Fully Assembled 195cc Enforcer Cylinder Head 195cc Intake Port Volume Straight Plug 64cc Combustion Chamber 23 Degree Valve Angle A356 Aluminum Sold Individually Breakdown of Included Items Flow Chart AFR 1001 Enforcer Aluminum Head Features: For 350 to 400ci engines operating below 6,000 rpm Intake Port Volume: 195cc Intake Port Dimension: 2.
080 in. H x 1. 270 in. x 5/16 in. Radius Intake Port Location: Stock Exhaust Port Volume: 76cc Exhaust Port Dimension: 1. 380 in. H x 1. 420 in. W Exhaust Port Location: Stock Valve Cover Bolt Pattern: Perimeter Bolt Valve Spring Pocket Diameter: 1.
580 in. O. D Max Valve Spring Pocket Machining: 1. 600 in. O. D Deck Thickness:450 in. Minimum Bore Diameter: 4. 000 in. Reduce Combustion Chamber Size 1 cc by Flat-Milling. 006 in. from Deck Surface, Maximum Mill.
Very nice heads for a man on my Budget, they do come with steam holes if you are running a 400 sbc. If you are going to run these on a 350 or bigger you will need to be cautious on head gasket you run.
The Felpro 1003 will not seal the steam holes the fire ring is located in a bad location and covers the steam holes in the heads.
903” o. a. l. Exhaust Valve, 1. 600” x 4. 955” o. a. l. 1. 290” OD Hydraulic Roller Dual Valve Spring, 135 lbs. on seat,. 600” maximum lift, max RPM 6300-65007? Manley Chrome Moly Retainers 7? Valve Locks 3/8” Rocker Studs Adjustable 5/16” Guide Plates Viton Valve Seals Hardened Spring Cups Intake Valve Seats Exhaust Valve Seats Bronze Valve Guides Small Block Ford 185cc Renegade Street/Strip Head Specifications – Head Torque w/Moly Lube 100 Ft.
Lbs. with 1/2” Stud Rocker Stud Torque 55 Ft. Lbs. Intake Port Gasket, 1. 250” x 2. 050” w/ 3/8” radius – Fel-Pro 375-1262 – DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket. – Exhaust Port Gasket Fel Pro 375-1415 Head Gasket Fel Pro 375-1011-1 Head Bolts & Studs Standard ARP Head Bolt Washers Manley Standard Head Bolt Bushings, 1/2”-7/16” Standard ARPStud Girdle – Standard Suggested Manifold – RPM Performer, Victor Jr.
Spark Plug Starting Range Autolite 3924 Combustion Chambers 58cc Spring Pocket can be cut to 1. 625, no deeper. Valve Spacing Standard Rocker Arms Standard, will not accept rail rocker arms Valve Angle Standard Angle Mill (10cc Maximum Optional Mill).
008” per cc Flat Mill (4cc Maximum Optional Mill). 006” per ccn.
I’ve purchased a set of these very expensive heads, in the understanding that they were not only potent performers, but also of great quality, made in the USA product. I am an overseas customer, so every dollar counts.
Imagine my disappointment when I unpack the heads and find an abundance of aluminum chips, poor finish and casting flash. The water ports appear irregular in shape, and there has been no apparent effort to clean them up.
The spark plug holes have sharp bits of aluminum as the holes weren’t dressed up after the machining operations were performed. More seriously, the water ports on the head mating surface seem very irregular, and have pieces of aluminum protruding that might become loose during use.
I’ve contacted the company, and while they apologized for the issue and promised to correct it so it will not happen again, there was no further word from them about at least helping me to fix the issues (due to shipping costs, it is more expensive to return them).
These issues give me doubt on the functional quality of the product, so I will have to pay a local machinist to verify valve seal, seat concentricity and so forth. I will try to update this review with his report.
I purchased these 185 Renegade heads based upon all the positive reviews and personal testimonies for my application. I can honestly say these heads are like pieces of jewelry , Beautiful to look at, they Scream quality.
If they perform as well as they look, then they should be Great! won’t know until spring as my motor is being built over the winter, but I expect them to be perfect for my 331 SBF Stroker Motor into My 64 Fairlane 500 Hardtop.
They setup beautifully. Guide plates and all. My 347 runs awesome with comp cams xe282hr cam , rpm air gap and Aed 750 carb with 4. 30s and a 6 speed. It really does run great. I did use 7/16 rocker studs with trick flow 1.
6 rockers. I can drive the car as smooth as butter all day long. A little bit of a stiff leg from the clutch but that’s expected.
Are you looking for a set of entry-level street performance heads for your modern street rod, musclecar, or truck? Edelbrock E-Street cylinder heads are just the ticket. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality.
Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. These features improve an engine’s efficiency, resulting in more horsepower and torque and improved mileage potential.
All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, and stainless steel one-piece valves with hardened valve tips. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines.
These are perfect for the low compression big blocks of the mid to late 70’s. I am building a budget 440 RV motor that should be a monster street tire smoker for under $3000. Low mileage 440 from an RV, Hughes Whiplash cam and lifters, E-Street heads and RPM intake topped with a Quick Fuel Brawler 850 double pumper.
This combo has been dyno’d at 460-ish hp at 5000 rpm and 550 ft lbs of torque at 2000 rpm.
pulled heads out of box, one head was in very nice shape, ready for service. the second head had not been full deburred from the milling process. extreme amount of burrs left all around the rocker shaft mounting pads.
disappointed discovering this situation. second time I have been disappointed with Edelbrock. I am through with their products.
Finished off my 1985 Jeep Grand Wagoneer 440 swap with these 75cc heads! Moves the 4800 lb Wagoneer to 60MPH in less than 6 seconds with 2. 72:1 gears! Had swapped the 440 into the Jeep in 2007 and it was time to make it better!.
PROMAXX Performance 9200: Cylinder Heads, Maxx Series, Assembled, Aluminum, 64cc Chamber, Rectangular Port, Chevy, Small Block, Pair – Maximum quality, maximum performance, and minimum pricing–PROMAXX Maxx Series SBC cylinder heads take affordable power to the next level.
With ultra-smooth Grade A 356-T6 aluminum castings that are precision CNC-machined, these small block Chevy heads deliver awesome air speeds with super-efficient chamber designs to produce the power and torque you need for the street or strip.
Maxx cylinder heads feature 5-angle competition valve jobs, diamond-honed bronze guides, and hand bowl blending. Get out-of-the-box performance that kicks up the power without emptying your wallet–PROMAXX Maxx Series SBC cylinder heads.
PROMAXX Performance 2169: Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 185 cc Intake Runner, Straight Plug, Chevy SB, Pair – PROMAXX Performance Freedom Series small block Chevy cylinder heads offer exceptional quality at an unbelievable price.
Manufactured from high-quality aluminum, they are assembled with the finest components. Freedom Series cylinder heads feature one-piece stainless steel intake and exhaust valves, enhanced intake runners, and performance valve springs with steel retainers.
They’re available in straight or angle plug designs. Horsepower costs money. With Freedom Series small block Chevy cylinder heads, PROMAXX Performance offers you the opportunity to bolt on the power that you’ve been looking for, at the price you want.
The castings seem to be good quality and my engine runs very well. However, I was having a hard time setting the valves. Valve train was making a lot of clatter. While doing a hot lash for the third time I noticed one of the stud was rocking also.
Checked torque on the stud and it was tight. Pulled the stud and compared it to an ARP that came out of my old heads. I found that the installed bolt in my new PROMAXX head was basically junk. A far inferior bolt to the ARP bolt.
This is very disappointing, fortunately for me I had a set of bolts to replace them. I’ve read a few reviews of failures so I don’t believe this an isolated indecent. Based on this experience, to purchase the head bare, and build it yourself would be best.
Now I’m concerned with the quality of the rest of the parts on the head.
I picked these up from my local summit in Arlington. They had them in stock and the quality is awesome! Some of these reviews had me a little worried but I’m glad I took a chance with these heads. The machining is perfect and I don’t see any imperfections.
Even the intake runner cast markings are good. Once I start the engine i will give an update in a couple weeks to give more info on power/performance.
ProMaxx Performance Cylinder Heads are designed as replacement cylinder heads with thicker castings in crack prone areas. Upgraded 60lb valve springs are included on the exhaust side to stop the valves from floating due to exhaust brakes or higher lift camshafts.
Sold as a complete cylinder head with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install. – FEATURES:New Casting – No Core Charge! 60Lbs Exhaust Valve Springs If you do not have a forklift, you will need a lift gate.
– Prop 65WARNING: Cancer & Reproductive Harm -P65Warnings. ca. gov. Cylinder Heads, Blessed Performance, Promaxx Performance, Promaxx Chr618N Replacement Cylinder Head 1994-1998 Dodge 5. 9L Cummins 12V.
After 2k miles. valve guides are trash. Correct vakvetrain geometry, great running truck and everything. Took the head off because I blew another gasket and found the valves had wear marks. one valve moves so much it makes me cringe.
exhaust ports are more restrictive than a stock head, machine work from the factory was dreadful of course. Even after machine work and porting, I’m not impressed. Off to the machine shop once more to get more work done!.
The casting and all the threaded holes are dialed. The deck surface was perfect. My two complaints cast in valve seats suck to me. They also said ready to install and if u want to lose compression possibly burn a valve then go ahead and just instal it.
Me I like all my compression and a really good seal at the valve and seat. That being said I just lapped mine in took me awhile but that’s okay. Now I have a really solid sealing surface. I’d recommend a valve job but lapping them iin real nice is a MUST.
I’m waiting for the sun to come up and it’s fine in the hole.
The conclusion of small block mopar aluminum heads is that they are a great addition to any engine. They are light weight and add power to the engine. They are also very durable and will last a long time.