273 to 340 swap

if use the 273 timing cover, and harmonic balancer, And old style water pump;
the other stuff will work.

Thats what I did when I went to a 1973 era, 318. :)

I suggest using the timing chain tensioner.



http://store.summitracing.com/partdetail.asp?part=DCC-5007709&N=700+115&autoview=sku