Doing a engine rebuild, My Girl Friend is a 73 TR6 VIN# CF 5407 UG, Engine CC-30915-HE, Head FU-218227
what should be the actual correct size, RevingTon TR says they should be 32mm, GoodParts sells 1.255, British Parts Northwest 1.258,(will be adding hardened seats, Bronze guides w/valve stem seals), trying to get a CR of 10:1
Using a unit converter, I get 32mm=1.2598425197, I round that off to 1.260 correct?,
And are valve stem seals needed on exhaust valves?
current bore is .040, unsure of piston Manufacturer, should I rule out .060, ( it is my understanding, that with this particular block, it should not present a problem.
Any and All,
Advise, Suggestions or Information.
Will be Greatly Appreciated.
still putting in the plumbing for the PI.
20180217_131345.jpg 127.82KB 0 downloads
20180217_131612.jpg 184.03KB 0 downloads
20180217_131631.jpg 174.27KB 0 downloads
20180217_131640.jpg 148.33KB 0 downloads
20180217_131650.jpg 181.2KB 1 downloads