Available Combinations for the VPE Chevrolet 496 based Strokers are 4.250, 4.280, 4.310, 4.320, 4.350 and 4.375 bore with a 4.250 stroke crankshaft in the conventional 4.250 bore block. Crankshafts are Cast Steel or 4340 Forged Steel. Crankshaft models feature 2.748 main journals with 1 or 2 piece rear main seals. Connecting Rods are 4340 Forged Steel. As always Custom Combinations are no problem.
Villain - Cast Steel Crankshaft, 4340 Forged Steel I-Beam Rods, Probe SRS Series Forged Pistons. Designed for stock replacement and mild performance applications.
Vigilante - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods, Probe SRS Series Forged Pistons. Designed for Street or Street and Strip performance applications.
Vindicator - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications.
Vanquisher - 4340 Billet Steel Crankshaft, Premium Connecting Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications. All components are Made in the USA.
Flat top pistons in a 496 inch Chevrolet engine will generally provide compression ratios in the 8.5:1 range which makes them a good option for Screw Blown engines where limited mechanical pressure is desired. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to over .750 valve lift.
Dome top pistons in a 496 inch Chevrolet engine will generally provide compression ratios in the 10.5 to 12.0:1 range (depending on cylinder head type) which makes them a good option for engines ranging from street to high compression strip cars. Dome volumes are 18.0, 39.0, and 48.0 ccs. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to over .750 valve lift.
