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Discussion Starter #1 (Edited)
i just bought a 67 firebird with a 2 bolt main 454 borded to a 468.
it has truck rods with arp bolts, trw forged pistons, merlin rectangle heads, 10 to 1 (pump gas), victor 2-r intake, block is studded for the crank and heads, solid 248/[email protected] recommended power range 3800-7000, crane glod rockers, stud girdle above the rockers, th400, 3800 stall and 4.10 gears.

i was told it had a stud girdle but i think he was talking about the heads. i know the heads have one. not sure if it has one on the mains. the guy that built the motor and the car said to shift at 6800r's. it's got a 7,000 chip in the msd 6al box.

let me know if you need more info. thanks
 

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Probably be ok if the one building set it up for it, but with the piston speed of the 454 stroke I don't think I would go any higher. It just all depends on valve train setup, quality of machine work etc. But then again they all can take it once after that who knows. I don't have much big block experience so hopefuly someone else will chime in.I do know the chevrolet power manual says it is within the safe range.
 
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