Standard size 74mm forged pistons

[triple j]

Has any one used the standard size pistons in there forge build, i was thinking of using a low mileage 4efe for the job so i can keep my stock as a spare, i dont mind going the next size up along with a rebore, what are your thoughts on this.

[AdamB]

Personally I would always advise against going the next size up in oversize, simply because its very hard to maintain the close tolerances on a used bore. especially after a hone you may find the bore is too sloppy.

[triple j]

True, i was thinking the hone would have to slightly effect the bore, but again it could still work out fine, some one must of used the standard size pistons.

[AdamB]

Am sure there are plenty of people that have, but its just not the way I would do it.

Whats your reasoning as to wanting to stay to the stock size bore?

[triple j]

I was just thinking the sell the 74mm so it must work out well enough u no.

[Jamie1st]

As AdamB has said I'd go for the next size up (74.5mm) as it allows you to start with a fresh re-bore. This is the route I took with my build.

[AdamB]

The only reason I would stick to a 74mm bore would be if I was competing and I was trying to get into a certain engine size catergory, other than that rebore everytime.

[The Toffinator]

I didnt bore mine as advised by the machine shop. Tolerances were perfect

[AdamB]

Didn't you use 74.5mm pistons though?

[The Toffinator]

Nope adam standard 74mm, standard bore size honed. So far have zero piston slap etc either and rings etc were perfecto