Can a block bored 30 over still be machined and used for a stroker?

Post by **CJ-8_Jim** » June 8th, 2017, 7:14 pm

I have a lead on a 4.0 block, but it is already bored 30 over.
Is this block still a candidate for a stroker build?

Post by **SkylinesSuck** » June 9th, 2017, 5:04 am

Yup. Many people skip right to a 60 over just for the displacement.

Post by **jsawduste** » June 9th, 2017, 6:01 am

And some of us even knock it to plus 80.

Post by **CJ-8_Jim** » June 9th, 2017, 6:16 am

Thanks guys for the education.
I didn't know what the safety factor was on a 4.0L block's cylinder walls.

Post by **Russ Pottenger** » May 31st, 2018, 8:23 am

I carry pistons up to a 3.970 bore which still safely allows you plenty of cylinder wall thickness.

That's a reasonable stopping point if you still want to utilize and have the convenience of a stock and commonly available 4.000 Bore head gasket.

Russ Pottenger
Bishop-Buehl Racing Engines
531 N. Lyall Avenue
West Covina, California 91790
Work (626) 967-1000
Cell (626) 673-2203
Email/PayPal: [email protected]

Can a block bored 30 over still be machined and used for a stroker?

Can a block bored 30 over still be machined and used for a stroker?

Re: Can a block bored 30 over still be machined and used for a stroker?

Re: Can a block bored 30 over still be machined and used for a stroker?

Re: Can a block bored 30 over still be machined and used for a stroker?

Re: Can a block bored 30 over still be machined and used for a stroker?

Who is online