Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   Engine bore... (https://www.offshoreonly.com/forums/general-q/207853-engine-bore.html)

GSELITE2000 04-29-2009 09:28 AM

Engine bore...
 
I am going to have to rebuild my 454 unless I can find a good deal on something else.

It has already been bored .040 over. Is .060 ok?

Scott

SHAWN DAVIS 04-29-2009 09:37 AM

should be no problem

Young Performance 04-29-2009 10:50 AM

What Generation block is it. Most 454 blocks(Mk IV, Gen V and VI) can go a max of .070 over without a problem. You have to watch for core shift and corrosion from the back side of the cylinders, especially if it is a salt water block. Would not be a bad idea to sonic check the block.
Eddie

getrdunn 04-29-2009 08:11 PM

I may have a set of new speed pro pistons .060 over with .230 dome. I'm not sure if they would work with your application depending on what heads you have and what the cc's are. If you have 119 cc chamber with a little bowl work these would put you near 9.5 to 1.

johnnyboatman 04-29-2009 09:12 PM

you will be fine

blue thunder 04-30-2009 06:16 AM

Mine are .070 and supercharged, no problemo.

GSELITE2000 04-30-2009 11:11 AM

I talked to Bill at ATECO and he recommended...
 
based upon what I want to do (I want torque and reliability), that I go .060 over and use a stroker crank resulting in a 496 cube engine.

I think I like this idea.

Any comments on this recommendation?

Scott

Rookie 04-30-2009 12:06 PM

That combination is built all day long and very reliable.

By the way my 454's are 0.070" over.


All times are GMT -5. The time now is 07:36 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.