<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: VintageMusclecar</div><div class="ubbcode-body">Since you're talking along the lines of "F.A.S.T." cars, how many cubes is Lane's Mustang? Isn't he somewhere around 557"?
FWIW, I've already done a 4.5"X4.5" short deck 572 back in `95. Made stupid power for no more than what it was. Can be done with off-the-shelf parts today if you (A) run an aftermarket block or (B) a short deck Bowtie/502 block.
BTW, PM coming shortly.
Eric </div></div>
I've heard anywhere from 557 to 598...and neither is a stretch for those factory Ford blocks...he simply says "500+"...whatever it is, it's making some steam to go 9.84 @ 139.82!
The FAST engine block rule seems a bit cloudy to me some days, as to whether the old 502 block is legal...
<span style="font-style: italic">2.01 Engine block must appear to be a correct* original block and it must be an original vintage OEM or vintage OEM replacement of the same engine family and exterior size and must be made from the same material as the correct* original block. Also, a new OEM replacement block is allowed only if it duplicates a legal vintage block in design, material, appearance, bore size and performance. No aftermarket blocks are allowed. Replacement OEM blocks that have raised decks, raised cam or bigger bores are not allowed. Block casting number does not have to be correct*. No aftermarket blocks allowed.
For example:
a. A correct* 400 cid block could be replaced with a vintage, OEM 455 block, if it appears externally correct*, and is made from the correct* material.
b. A correct* Mopar 340 could use a 318, 340 or a 360 block, if it appears externally correct*, and is made from the correct* material.
c. A correct* 327 Chevy can use a 350 or 400 block, if it appears externally correct*, and is made from the correct* material.
d. Mopar Hemi standard replacement block is allowed, but a Siamese bore Mega block is not.
Only early Hemi restoration blocks are allowed. For clarification, Email Dave Dudek @
[email protected].
e. GM ZL1 replacement block # 3946053 is allowed.</span>
I'm just not sure how big & reliable I could go with my '70 512 block...engine guy says 540-ish?