[Fot] 89 mm liners in a street TR4

[Tim Murphy]

I'm planning on rebuilding the engine in Ryan's street 1964 TR4.  We're
thinking of putting a set of Ken Gilanders liners and forged pistons in.  Is
there any downside to using the 89 mm liners versus the 86 or 87 mm liners?
If the 89 mm liners are used is there anything else that would have to be
changed?  The car has the Stromberg carbs and he has already put a 4 into 1
header on it some time ago.  Had to, the cast iron exhaust manifold cracked
in half.  We've already gotten one of Larry Young's 270 cams for it and plan
to mill the head slightly.  The 89 mm liners would bump the CR up to 9.5
with the stock head and I was thinking of milling it to go to 10 to 1.  I'd
appreciate any thoughts/advice from the group on this.

 

Thanks,

Tim