ProTru by Wiseco Pro Tru Street Series Piston - Forged - 4.030" Bore - 1/16 x 1/16 x 3/16" Ring Grooves - Minus 4.0 cc - Small Block Chevy KSE Racing Products 3 homologation standards

3 homologation standards

1963-1978 Buick Riviera

All fuel pumps are for gasoline only

The NX Digital RPM Window Switch keeps the nitrous from activating at low RPMs and shuts off the nitrous before you over rev and/or hit a revlimiter

Constructed from high grade 316 stainless steel Capable of withstanding in excess of 2500F 100lbs tensile strength Fits up to 6 in

ProTru by Wiseco Pro Tru Street Series Piston - Forged - 4.030" Bore - 1/16 x 1/16 x 3/16" Ring Grooves - Minus 4.0 cc - Small Block Chevy KSE Racing Products 3 homologation standardsChevrolet LSWiseco 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: Pistons and Rings Pro Tru Street Series Forged 4. 030 in Bore 1 16 x 1 16 x 3 mm Ring Grooves Plus 4. 00 cc