Offshoreonly.com - Maximum overbore gen 5 454

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - Maximum overbore gen 5 454 (https://www.offshoreonly.com/forums/general-q/34732-maximum-overbore-gen-5-454-a.html)

ragtop409

10-12-2002 07:00 PM

Maximum overbore gen 5 454

Hi can't find any good local deals on a good used 502 so I was wondering how big I can have my 454 done? I know that the old Mark 4 Hi-perf 4 bolt blocks they take 100 over is this safe on a newer gen 5 boat block? Thanks Charlie

traviss

10-12-2002 07:12 PM

well standard bore is 4.25".. so i would think .060" is all i would want to bore.. so 4.31" You might be able to go bigger if you check it with a sonic tester and make sure you have enough meat, plus to make sure your bore is centered in the cylinder. If it was me i would just go .030" to clean up the bore. That would leave you another .030" for cleanup if you scatter the motor.. You don't gain much by enlarging the bore...

Travis

Tinkerer

10-12-2002 07:35 PM

HEY TRAVISS----4.25 + .060 = 4.31

ragtop409

10-12-2002 07:49 PM

I think travis does math the same as puder spell's:D

traviss

10-12-2002 07:54 PM

dammit.. well I can blame it on the beer or blame it on my education.. Al I gotta say is i took 7 class's of math in college and there was only 3 class's to complete :eek: :D

thanks tink.. :)

Tinkerer

10-12-2002 08:42 PM

NO PROBLEM--- I AIN"T NO MATH GENIUS EITHER.

timucin

10-13-2002 06:09 PM

Quote:

Originally posted by ragtop409
I think travis does math the same as puder spell's:D

:D :D :D :D :D

All times are GMT -5. The time now is 11:00 PM.