[Tigers] 260 with big valves?

spmdr at juno.com spmdr at juno.com
Wed Nov 8 07:59:46 MST 2017


There seems to be a belive that you can't put 

big valves/aftermarket heads on a 260...

BECAUSE of the bore size.

Not the case.

The typical problem is piston to valve clearance.

Standard 260s have flat top pistons, no valve reliefs.

I have a 260 with a 3.800 bore, with 351 heads and 1.900 intake valves.

However, It Does have aftermarket pistons with valve reliefs.

...Of course, all the BIGGER Stuff in the combustion chamber of a 260

KILLS compression, so pop up pistons are needed, just to get back to
square one...

DW

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