[ryan7662]

How many rpms do you guys think a 351w can reliably handle with forged internals? Still deciding between a 383 and a 408 but either way it'll have a eagle forged crank and h beams. Pistons will be forged Keith Blacks. My twin Borg Warner 55mm turbos might not make full boost till 3-3500rpm and that's why I'm wondering how many rpms I can safely spin to. Was thinking about arp main cap bolts and a stud girdle to help solve any cap walk problems if need be. Any help would be greatly appreciated

[RLG34750]

the max rpm will be based on the cam & valvetrain.....

a stock block 351 will only handle approx. 600 hp regardless.....

since you will be full boost @3500rpm it really doesn't matter how high you spin the motor.....

[ryan7662]

Yeah I'm taking your advice from before Reggie I was going to keep my power at or below 600hp. I think 600 will be enough of a kick in the pants. I'll was going to run 1.6 roller rockers on top of my edlebrock jr victor 210cc heads. I think I'll go with a comp Xtreme energy cam like this one COMP Cams: Xtreme Energy™, XE294H <BR> Pro Street/Bracket
Its not computer compaitable with a stock ecu but I'll be tuning the ecu with a quarterhorse so I should be able to make it play nicely with the t4m0 ecu. The cams good for up to 7000 and I'll have a good set of springs and pushrods. I just wasn't sure if the block would somehow be affected by 7000rpms. Thanks man

[ryan7662]

Actually since its turbocharged that cam might be a little too hot. Can a cam that is rated for 5500rpm n/a handle higher rpms with forced induction? Turbos are suppose to like a lobe sep of around 114 and short durations which is close to stock

[RLG34750]

With a turbo you reallly should consider a custom grind....

[uedlose]

wrong post sorry