• Hello Guest, welcome to the initial stages of our new platform!
    You can find some additional information about where we are in the process of migrating the board and setting up our new software here

    Thank you for being a part of our community!

Performance Engine Building: Specs

xmlhack

xmlhack

Member
Joined
Dec 9, 2005
Location
Palm Bay, FL
I have the overhaul specs for an aq151c penta engine, but I want to build a 16 valve, boosted stroker automotive engine.

Do you recommend i use these overhaul specs?
 
For what sort of specs? Bearing clearances, and play and other specs yes. But Not for like, stroke, rod length, piston comp height etc etc. Is that what you meant?
 
GTJordan said:
For what sort of specs? Bearing clearances, and play and other specs yes. But Not for like, stroke, rod length, piston comp height etc etc. Is that what you meant?
Click to expand...

yeah. the engine i want to build is not the aq151c. so not all these specs will apply (e.g., valves). my question is about the difference in tolerances between overhaul engine specs and performance building specs (if any).
 
for example, Bore: 96.00-96.03

are these good enough for high performance engines or should they be tighter? 96.00-96.02
 
Bore diameter depends on the pistons you have and the intended use.

You can also change the ring end-gap depending on use.
 
Last edited:
You must log in or register to reply here.
Back
Top