Miata Turbo Forum - Boost cars, acquire cats.

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- Engine Performance (https://www.miataturbo.net/engine-performance-56/)

- - 1mm oversize inlet valves (https://www.miataturbo.net/engine-performance-56/1mm-oversize-inlet-valves-52205/)

delcbr

Oct 1, 2010 10:41 AM

1mm oversize inlet valves

if i got these fitted to my head 1999 on a 96 block would there be any interference issues between piston and valve?or do i need to increase the valve cutouts on the pistons?

rharris19

Oct 1, 2010 11:35 AM

You won't have a problem with the pistons if installed correctly.

Savington

Oct 2, 2010 02:02 PM

Ask your motor builder.

falcon

Oct 3, 2010 12:21 PM

Check piston to valve clearance. Is the head already on the shortblock?

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