[rob302]

I was planning on rebuilting my 302 clevo, I managed to pick up a set of brand new pistons and rings for dirt cheap the pistons are 60 thou over, since buying the piston I was told not to go any greater then 30 thou due to the cleveland having thin cylinder walls, so can any anyone tell weather I can or cant go to 60 thou over

Cheers

 

[CJR09]

Not recommended, but can be done - see attached thread.


http://www.fordforums.com/showthread.php?t=107595&page=2&pp=10&highlight=cylinder+wall+thickness

 

[Work Horse]

Hey rob302 since posting in the thread CJR09 put up I have worked on my .060 block again and realised it is sleeved on every cylinder.
It's not that Clevelands have thin cylinder walls so much as the blocks are often not case straight. Meaning areas of the bore are thiner than Ford intended/designed.
Some engine shops are capable of doing a sonic test on your blocks bores. This will tell you how far it can be bored safely.
Those cheap .060 pistons may cost you a bit more money to find a block they fit!

 

[Jet711]

Dont trust sonic testing scale can give false readings trust me i learnt the hard way

 

[brenx]

Dont trust sonic testing scale can give false readings trust me i learnt the hard way

What type of block was it Jet711? Blue or black?

 

[3vxyute]

I had a 302 very mild only a 650 holly headers,double valve springs and an edlebrock manifold which was bored 60" . Gave it hell every day revved it to 6000 occasionally and never had a problem. Only reason its not going is i build a bommed 351 and the timing chain was getting worn. :driver: