[Fot] 89 mm liners in a street TR4

[J.C. Hassall]

On 2/11/2010 10:23 PM, Tim Murphy wrote:
Tim, I installed a set in my autox / street TR4.  The pistons were much 
lighter (sorry, no access to the engine build log at the moment, so 
can't quantify "much") and came w/Deves rings.  What's not to like?  I 
ported and cc'd the head and shaved it to 10.0:1, which works fine with 
what passes for premium pump gas.  The cam is an Isky 777.  With all 
those bits, and 40 DCOEs that are waaaay too rich at the moment, I can 
light the tires in second gear. Hehehe  I forgot to mention that I'm 
also running BFE's oversize and gas-flowed valves (Ken's valves were 
almost too pretty to install).  This engine pumps some *serious* air!

While you're working on your engine, why not have the crank nitrided 
(I'm assuming you're using a stock crank).  Shaftech did mine, and it 
now rings like a bell.

jim
> 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
>
>    

-- 
Jim Hassall
Blacksburg VA
'63 TR4 in autox preparation
99% finished, 90% to go