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Charts & Guides for Part Number SUM-BBP400030
Summit Racing™ Forged Pro Pistons
Forged Pro pistons for Pontiac 400, 4.150 bore, 1.715 C.H., 3.75 in. stroke, 6.625 in. rod, 6cc flat top, 11.3@64cc, 10.3@72cc, 9.6@80cc, 9:1@87cc.
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Estimated Ship Date from Texas: Tomorrow Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-BBP400030
Part Type:
Product Line:
Summit Racing Part Number:
SUM-BBP400030
UPC:
190861284159
Piston Rings Included:
No
Bore (in.):
4.150 in.
Bore (mm):
105.410mm
Stroke:
3.750 in.
Engine Stroke Type:
Stock
Rod Length:
6.625 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.715 in.
Piston Head Volume (cc):
+6.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.980 in.
Piston Ring Thickness:
1.20mm x 1.20mm x 3.00mm
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
For Use with SUM-136SN9050025 Gas Nitride Steel File Fit File-Fit Rings.
Summit Racing™ Forged Pro Pistons
Summit Racing™ Forged Pro Pistons brings modern engine piston technology to older engine platforms at the great value. Why use an antiquated piston designed fifty years ago in your new build?
A great piston starts with a great forging. Forged Pro piston forgings are stronger AND lighter. This makes more power AND takes stress off the crank, rods and block at higher rpm. It also saves money balancing a crank when heavy metal is not required.
Forged Pro pistons are designed around ultra-modern Nitride Steel top ring packs and Summit GP Gas Ported variants. Less friction results in more power and less bore wear. Superior machining results in less blowby for less oil consumption and longer life is the result. Better rings are great horsepower per dollar!
Most old production engines were designed to run on 87 octane in heavy vehicles. If you're building a performance engine, chances are you're running it on 91+ octane and you might as well add a little pop. Forged Pro pistons yield an extra 1/2 point of compression in most instances. This is free power from idle on up for the life of the engine!
Forged Pro pistons have extra thick ring lands for moderate boost and nitrous. Special care has been taken to deburr critical areas for more strength and less chance of detonation. Special skirt profiles are designed to run at tighter clearances than other forged pistons for less piston rock. This helps them make more power, run quieter and last longer than other forged pistons.
Make your build run with the best of them!
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