JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy - 420 C.I. - 4.155" Bore Size - 3.875" Stroke - 6.000" Rod Length RS00400315 Does not fit TH350C models

Does not fit TH350C models with locking torque converter

ARP rod bolts are heat-treated before grinding and thread rolling / and have a large underhead radius for greater strength

Units install in tanks from 7" - 12" deep

980 in Oval Port

non-adjustable trailing arms for Camaros and G8s (TCA026) are manufactured from heavy-duty 1x2-inch boxed steel tubing

JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy - 420 C.I. - 4.155" Bore Size - 3.875" Stroke - 6.000" Rod Length RS00400315 Does not fit TH350C modelsThese high compression pistons are compatible with most aftermarket 23 heads and are ideal for drag racing and circle track applications. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC ring grooves are designed for 1 16, 1 16, 3 16 rings. Will not fit Pro Topline or Brodix 11X cylinder heads. Includes: Pin #927 2750 15 51S (130g) Double Spiro locks #927 042 CS Contact reduction grooves