These are Garage Sale priced because the blocks are new old stock that have some surface rust areas from storage.

NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

When building a mild Small-Block performance engine or a replacement for a stock engine, production-based blocks from Chevrolet Performance give you strength, accuracy and peace of mind that can’t be assured in a rebuilt core. And unlike so many of the used cores, nearly all of ours feature four-bolt main caps for extra strength. Each cylinder block is machined to production-spec tolerances and is manufactured to the exact specifications of pre-1986 or 1986-later engines.

• One-piece real main seal
• Cast-iron 4-bolt block
• 4.005" bore
• Torque plate honed
• Clearanced for 3.800" stroker crankshaft
• Machined for hydraulic roller or flat tappets
• Machined for Mechanical Fuel Pump

Production-Based Block Technical Notes:

• Standard 350 main journal sizes
• Non-siamese bores
• Production-spec cylinder wall thickness
• Lifter valleys machined for hydraulic-roller and flat-tappet valvetrains

383 Bare Block (1986 – Later Style), 1-Piece Rear Main Seal

• Cast-iron 4-bolt block
• 4.004" bore
• Torque plate honed
• Clearanced for 3.800" stroker crankshaft
• Machined for hydraulic roller or flat tappets

Specs:

• Part Number: 88962516
• Deck Height: 9.025"
• Lifter Pattern: Standard
• Cylinder Wall: Open
• Bore Range: 4.000" - 4.030"
• Main Bolt: 4
• Main Bolt Degree: Straight
• Cap Material: Gray Iron
• Crank Journal Size: 350
• Oiling: Wet
• Seal Type: 1 Piece
• Max Stroke: 3.800"
• Weight (lbs): 181
• Max HP: 450
• Usage: Street