Are all 429/460 engines dimensionally the same to allow intake manifold swapping between early and late model engines? Does anybody have an interchange manual or manifold dimensional data? All of this is assuming no machining has been done to appreciably change the factory dimensions. Researching viability of converting to factory EFI. Thanks to those who replied to my previous EFI question.

 

the only difference in the 429 and 460 is the crank and pistons...the 460 has a 3.9? somethin stroke and the 429 has a 3.6 somethin, help me out here guys


1985 F-150/351Ho/4wd/6inch with 33's
1979 f-250 429/4spd/

on a quiet night your can hear a chevy (lol,you can watch a dodge) rusting away

 

The 460 has 3.85" stroke and the 429 has a 3.59" stroke.

 

I believe you'll need to switch to the fuel injection heads, the intake ports on the F.I. are smaller. That then creates another problem because the F.I. exhaust ports are also different and your exhaust manifolds will not match.

Deen Hylton
Ford F250 460 C-6, K&N, Headers, Dual Exh.,Comp. Cams,Shift Kit
Pioneer CD w/Bose Speakers.
Other Passion: Blown 77 Corvette (Sorry Guys/Gals)
How I can afford to Drive the above: 93 GEO Metro