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Rover SD1 9.75 cr pistons
Posted: Sun May 10, 2015 11:35 am
by rover827
I have recently stripped down my sd1 3.5 v8 9.35 cr engine, this is my first engine build so I'm a novice.
My question is can I put 9.75 pistons in the block without having to get the heads skimmed, I had these left over from a vittesse block I stripped last year, or buy new ones.
Thanks
Andy
Posted: Sun May 10, 2015 12:03 pm
by ChrisJC
Yes. All the 3.5l pistons are interchangeable. The only difference is the size of the dish in the piston.
Chris.
Posted: Sun May 10, 2015 12:11 pm
by rover827
Thanks for the fast reply Chris.
Re: Rover SD1 9.75 cr pistons
Posted: Sun May 10, 2015 1:19 pm
by DaveEFI
rover827 wrote:I have recently stripped down my sd1 3.5 v8 9.35 cr engine, this is my first engine build so I'm a novice.
My question is can I put 9.75 pistons in the block without having to get the heads skimmed, I had these left over from a vittesse block I stripped last year, or buy new ones.
Thanks
Andy
Yup - if they are good. But do check the bores and pistons are standard - although it's unlikely either have been re-bored.
Discard the rings and examine the lands/grooves for wear and damage - and make sure they are clean. Hone the bores and fit new rings. If you still have the Vitesse heads and they are good, use them. They have slightly better flow.
Posted: Sun May 10, 2015 1:25 pm
by rover827
Thanks Dave, unfortunately I don't have the vittesse heads, just the standard 9.35 one's.
Andy