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k how come they bore the 408 instead of just keeping the pistons off the 351/302?
you can use a 4 inch bore, if you happen to have a new block, but the actual pistons from a stock 351 or 302 wont work due to the wrong compression height of the piston
I have a 408 in my dirt track race car and its making 625 hp. I have a stock block,13.6 to 1 compression,RHS heads and a dual plan intake (Weiand Stealth) on it right now but will be swapping it out for a single plan next season to gain a few more hp.
If your bore the 351 it would be like making a 302 a 347. You will be messing with the integrity of the cylinder walls stroking it that high. Get a 390 and then stroke that but remember that there is no replacement for displacement.
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There is never a replacement for displacement!
If your bore the 351 it would be like making a 302 a 347. You will be messing with the integrity of the cylinder walls stroking it that high. Get a 390 and then stroke that but remember that there is no replacement for displacement.
i haven't heard of anyone having a reliable 427w as a DD. I'm leaning towards the 408w myself but since the price difference is only minimal I'm considering the 427w as my DD.
I'm more of a risk taker so i'll probably go the 427w route. I'm sure when that time comes I'll have alot to say.
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92 tbird 408 turbo 5spd Borg Warner S475mm 1.1AR T6
Tial 44mm w/g @ 11psi tial alpha q bov
8.7:1 RHS heads 2.08I, 1.6X, 64 c/c, 215-I/66-X
Comp Cams 1.6 RR's F303 Cam 226 @ .05, .512 lift
80# injectors, Edelbrock Super Victor EFI intake & elbow
90mm LMAF w/ Mafia Xpander
75mm t/b 4x12x31 intercooler w/ 1200cfm fan
LC1, QH, BE, T4M0-CBAZA
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RE: 408 or 427 stroker
