KB Claimer Performance Series - SB Chevy 350 - 6.0" Rod Length, 4.060" Bore Size, Flat Top w/ 2 Reliefs H762C05S 5256 works with older Pyrometers

5256 works with older Pyrometers with thread on probe connections

Rubber Bumpers for most competition-style leaf spring traction bars

Ideal for use on street or strip applications

2-1/4 in Tailpipe

Phenolic manifold spacers are also a popular way of increasing manifold to valve cover clearance to accommodate taller valve covers and get additional clearance

KB Claimer Performance Series - SB Chevy 350 - 6.0" Rod Length, 4.060" Bore Size, Flat Top w/ 2 Reliefs H762C05S 5256 works with older PyrometersSilvolite Pistons improve power, fuel economy, cylinder sealing, service life and cost effectiveness by significantly reducing expansion rate, allowing the piston to be run with reduced clearance. Silv O Lite Pistons are budget priced, high performance pistons with T5 heat treating and non machined valve relief area. Created from a high silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while