How do I know what brodix heads I have?
The stamping is usually located on the end of the casting above the accessory bolt area just below the valve cover rail. We have stamped some heads on the exhaust side of the head as well. The numbering system only identifies the casting model and the year the head was made.
How do I identify my SBC heads?
These identification numbers are cast in to the part during the manufacturing process. Casting numbers for small-block cylinder heads are usually located between the valve spring seats under the valve cover for Gen I and Gen II heads and in the valve galley on the newer cylinder heads.
How can you tell if a head is aluminum?
Aluminum. First, check to see if the heads are made from cast iron or aluminum. Iron heads will attract a magnet, aluminum heads will not.
What degree are brodix heads?
Big Block Chevrolet Compatible Heads
BRODIX is the undisputed leader in big block Chevrolet compatible technology. Conventional style cylinder heads are available in 26º, 24º, and 20º valve angles, and spread port heads are available in 18º, 16º, 14.5º, 12º, and 9° versions.
Are brodix heads any good?
Usually, big performance heads give up a little downstairs for midrange and top-end improvements, but in this case, Brodix proved superior at every lift point on both the intake and exhaust sides, from off the seat through 0.800-inch lift.
How do I choose the right cylinder head?
There are many factors involved in choosing the optimum cylinder heads for a specific application, including:
- Engine displacement.
- Type of vehicle.
- Intended use.
- Desired compression ratio.
- Gear size.
- Other performance modifications.
Where can I find head casting numbers?
HEAD CASTING NUMBERS
The head casting number is located on the top of the cylinder head. The valve covers must be removed to find the number.
Where are casting numbers on GM heads?
The casting number of a GM cylinder head is located between the valve springs. It’s a long number of 6 to 8 digits.
Can you Magnaflux aluminum heads?
The magnaflux process does not work on aluminum heads, but penetrating dyes are available to test aluminum parts in a similar way.
Can aluminum cylinder heads crack?
Cracks in aluminum heads are most often repaired by TIG welding (though pinning also works with small accessible cracks). The first step in welding aluminum is preparing the crack. The head must be clean, grease-free and dry before grinding out the crack. The crack must be ground all the way out.
What degree are standard SBC heads?
23 degrees
The number refers to the angle of the intake and exhaust valves in relation to the head’s deck surface. By contrast, conventional small block Chevy heads have a valve angle of 23 degrees.
Where are profiler heads made?
the USA
Summit Racing carries a variety of high-performance Profiler heads, intake manifolds, and valve covers for both Ford and Chevy applications—precision-engineered parts made in the USA and designed to deliver more power and better performance to your ride.
Who owns Brodixheads?
50 years later, BRODIX continues to be family owned and operated with J.V. and Paula Brotherton’s children (Jeff, Greg, and Jennifer) now leading the business. Although the world and racing are ever-changing, they stand strong with their devotion to making high quality products that result in outstanding achievements.
What’s better cast iron or aluminum cylinder heads?
Both types of heads can be damaged if the engine overheats. Cast iron is much more durable. However, aluminum heads are easier to fix. The metal is softer and easier to weld and machine.
What engine has 823 heads?
GM LS3 L92 6.0L 6.2L Cylinder Heads REMANUFACTURED 823 Square Port Assembly w/Rocker Arms PAIR 823 ; 821 ; 5364 ; 12600936 ; 12629062 ; 126269064 SET NO CORE CHARGE NECESSARY.
How do I find my casting number?
These can be found on the block, cylinder head, transmission case, differential housing, and other cast iron parts. Depending on the make and model of your vehicle they can be located in different areas.
How do you pressure test an aluminum head?
Water Testing Cylinder Heads to Diagnose Compression Issues
How do they check aluminum heads for cracks?
These methods are:
- Dry magnetic particle inspection (use for cast iron)
- Wet magnetic particle inspection (rarely used for heads or blocks; very messy)
- Dye penetrant inspection (ideal for aluminum castings)
- Pressure (or vacuum) testing (use to find pin holes in aluminum or cast iron)
What is a 23 degree SBC head?
New for 2012 is the CHI range of Chevy heads, our 23 degree Small Block head is a 215cc intake head designed for circle track or drag racers who want to benefit from significant horsepower increases and less weight of traditional performance chevy heads.
What are 18 degree heads?
In 18 degree heads, the valves are right on the cylinder bore centerline. The valves are also relocated to position the intake valve closer to the bore center, and the exhaust valve closer to the cylinder wall. This unshrouds the intake valve at maximum lift and allows the use of bigger valves.
Where are ProMaxx heads made?
ProMaxx, Maxx Series Chev SB Aluminum Heads, 200cc/64cc, Straight Plug, Assembled. Made right here in the U.S.A. Taking the affordable performance cylinder head to the next level.
Where are Air Flow Research heads made?
Valencia, California
AFR stays true to this commitment by manufacturing each piece in our Valencia, California facility just 30 minutes north of Los Angeles.
Can you run higher compression with aluminum heads?
Remember that an aluminum head is more tolerant of high compression, and all other factors aside, a higher compression motor will make more power than a low compression motor, provided that its unique compression-related requirements (fuel octane, camshaft, etc.) are met.
How much lighter are SBC aluminum heads?
Aluminum heads are lighter. They can save about 50 lbs. total. On a street car, that won’t make a big difference.
Are 821 and 823 heads the same?
From what I understand there is no real difference in the 821 and 823 other than valves and springs. The Ls3 version has the light weight valves and better springs. There is another casting number for the L92’s that is suppose to be a rougher earlier design, that would be the one to avoid unless it’s ported.