1969 396 375hp L78 4 Bolt Block OR 3963512 LS6 4 Bolt Engine Blocks

1969 396 375hp L78 4 Bolt Block  OR  3963512 LS6 4 Bolt Engine Blocks
1969 396 375hp L78 4 Bolt Block  OR  3963512 LS6 4 Bolt Engine Blocks


$5900.0 Buy It Now or Best Offer
free,30-Day Returns





Seller Store custom_engine_supply
(1488) 100.0%,

Location: Angola, Indiana
Ships to: US,
Item: 134488312830

Returns Accepted:ReturnsNotAccepted
GM Chevrolet:GM Chevrolet
Other Part Number:01-03-FL
Interchange Part Number:1968 1969 L78 396 375HP,1969 L78 NOVA BLOCK
OE/OEM Part Number:396 375HP L78 ENGINE
Manufacturer Part Number:3955272,3963512

This was a running engine out of a authentic 375hp L78 car, believed to be factory JH suffix. 3955272 Casting Number –factory 4 bolt main. (This block is now sold) but have others, including factory 4-bolt 3963512 427 Hi-Po blocks and LS6 450HP. I have sold the heads and the standard bore dome forged pistons with dimple rods. The engine had very little run time on it with a fresh rebuild which included grinding the crank and rehoning the block. What remains is the block and crankshaft. It can stay standard bore if one does not mind a little extra piston to wall clearance or I can help you have your standard bore pistons calico coated on the skirts. Or, it could go .030 for a totally fresh cylinder vs a re-ring. This is to the best of our knowledge a factory stamp JH suffix, not a restamp. Casting date Sept 1968 perfect for any car built late sept, oct 1968 or later into 1969. We have the ability to restamp the block and even stamp your car’s VIN to match for an additional fee. However, you must be able to show some PROOF your car was originally a 375hp car if we are to VIN stamp it via documentation such as the original POP plate, original dealer paper work, original window sticker, or credible prior owner testimony affidavit or a certificate of authenticity from someone like Jerry MacNeish, Dottier, or Dale McIntosh ! This was originally installed in a Willow Run built 1969 Nova, but we can stamp it for Chevelle, Camaro, or other application optional and additional cost. Inquire for more information. IMPORTANT: The listing is just for then engine block as you see it taken apart–nothing further included. The 6223 forged L78 crank is to be removed and is NOT included at the buy it now! But could be bought for an additional charge. I would also be willing to machine the block for you and or build it for an optional additional charge. I am a full engine machine shop and 25+ year experienced engine builder.

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