my 1st 340....yea

1WildRT said
Heads are 915 which started in 70 but would have a J by the spark plugs... Those have O by the plug which probably is 72-73.. Should have 1.88 valves...

66fs said
"O" heads should be 70 with 2.02 intake valves, that is also easy to measure. 340 springs are most likely good, your friend does not know what he is talking about. East to test.

yeah hes not a mopar specilist ,but has been doing it for 45 years ......look like 202s going to have him do them