Quote:
Originally Posted by tom s
I think the failed lifter was actually a Isky,been so long and have tried so many diff cams in that engine over the last 20 years.I know I had them rebuilt and are still in the engine.First can was a Isky solid roller,second was a 245-252 comp hyd roller,think the one in now is 236-244 hyd roller.Both comps were their high lift hyd roller lobes.Tom
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You seemed to have very good service life out of yours. I'm just a little paranoid I guess after browsing the Chevelles forums & seeing all the failed lifters in BBCs with low miles. The Pontiacs seem to hold up much better.
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68 GTO,3860#
Stock Original 400/M-20 Muncie,3.55’s
13.86 @ 100
Old combo:
462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's.
1968 Pontiac GTO : 11.114 @ 120.130 MPH
New combo:
517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's
636HP/654TQ
1.452 10.603 @ 125.09
http://www.dragtimes.com/Pontiac-GTO...lip-31594.html