GM 350ci Small Block Chev Cast Iron Bare Engine Block (GM10105123)
This is a special order item!
We do not carry this item in stock & it will be special ordered for you. Please contact us before ordering for delivery times. Additional freight charges may apply.
Suits Late Model 1986-on with 1-Piece Rear Main Seal
Part Number: GM10105123
Description
This engine block is used in 1986-99 Gen I heavy-duty applications. It has 4.00" diameter cylinder bores and four-bolt main bearing caps. This block is machined for a one-piece rear crankshaft seal. These blocks weigh 197 lbs. Cylinder wall thickness is the same as current production engines. The lifter valley is machined for hydraulic roller and flat tappets. Crankshafts with two-piece seals can be installed with adapter P/N 1005118.This block includes: main bearing caps, main bearing cap bolts, freeze plugs, oil gallery plugs, and cam bearings.