WTB 400 block
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Joined: Feb 2007
Posts: 72
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From: Yukon, OK 73099
Car: 88MCSS/92Firebird
Engine: 421/355
Transmission: TH-350/4L60
Axle/Gears: 4.11/2.73
WTB 400 block
Would like to replace what I have... billet splayed 4 bolt 509 .030 over or less.... but open to others and definitly aftermarket pieces... someone have something for a poverty build?
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