Technical > Matt Shaff's Engine Shop

Minimum sleeve thickness

(1/1)

wideopen231:
Ok have 2 TFX-92 solid blocks. Wondering how big I can go with bore? Guess question is how thin can sleeves in solid block be and still remain round.they are not going to leak reguardless.LOL

jeff/21:
i've never had a solid block you should be able to go big, check and see what pistons are available or go see at insidetopalcohol.com they must have people that have run that motor

wideopen231:
I have a post on inside top alcohol/Not many run these antiques any more. As for piston they are custom made so any size works and same cost.

jeff/21:
i see that you got your answer in the other forum i've gone there for info in the past

wideopen231:
Yep looks like 4.375or 4.400 is doable . If going to spend money for new pistons might as well go bigger and add another 1/4" of crank plus cpl points compression. Figure can always drop compression if need with gaskets. hAVE .030 TO .090 sitting here.

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