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Re: 427 Tall Deck
Most BBC parts will interchange with these. The decks are .400" taller, so if you swap some 049s or 781 with an aluminum intake, you will need to run spacers and an adjustable distributor.
The cranks are forged, rods are forged with 7/16 bolts, blocks are 4 bolt, heads and heavy ass pistons are the downfall. Swap in a 1/2 stroker crank and bore .60" over, got a 496 torque monster.....
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2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 4” SAS
1999 GMC Yukon 350/4L60 6" SAS
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