ProTru by Wiseco Dome Piston - Forged - 4.280" Bore - 1/16 x 1/16 x 3/16" Ring Grooves - Plus 21.0 cc - Big Block Chevy - (Set of 8) HARN03F003 GS3 and GS0 Series with

GS3 and GS0 Series with 2-1/2" Springs

Constructed of 6061-T6 aircraft aluminum or stainless steel

The FAST LSXHR FAST-RAM Intake Manifold is designed specifically with boosted applications in mind and is rated for up to 45psi of continuous pressure

Forged from premium quality SAE 1050 steel

ProTru by Wiseco Dome Piston - Forged - 4.280" Bore - 1/16 x 1/16 x 3/16" Ring Grooves - Plus 21.0 cc - Big Block Chevy - (Set of 8) HARN03F003 GS3 and GS0 Series withChevrolet Big Block 454Wiseco Pro Tru is a division of Wiseco specializing pistons and piston rings for price conscious engine builders. They offer complete kits to fit a wide range of engines. Manufactured by Wiseco Performance Products, ProTru Forged Pistons are affordable with features usually found only in more expensive pistons. Product Description: Piston Dome Forged 4. 280 in Bore 1 16 x 1 16 x 3 16 in Ring Grooves Plus 21. 00 cc Big Block