454 mark Iv 90-91 short deck
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Joined: Oct 2006
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From: los cabos baja california
Car: camaro z28 84
Engine: chevy 468
Transmission: th400
Axle/Gears: 9 inch 3.25/4.11,axles moser 31 spl
454 mark Iv 90-91 short deck
Bbc chevy #10068286 info.will 049 or 781 heads work with this block and is the block 1 piece or 2 piece seal.?
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: 454 mark Iv 90-91 short deck
10068286 is a 1990 Mark IV block so Mark IV heads such as 049 or 781 will fit. The block should be a 2 piece rear main.
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