I have to make a decission,but needs some help about the headgaskets.
right now i have a leak at the coolant hole at the passenger side near the firewall .
should i stay with the 9966PT or go for the 1074.

 

Not sure what significant differences there are with the two, but it does state the PT gasket is a stock replacement whereas the 1074 is a performance gasket. I've used 1074's for years with no problems FWIW.

 

O.K. thanks,i have just ordered the 1074,hope to have them in a few weeks.

 

for anyone who wants to know the main differences in the gaskets
first of the 1074 is the performance gasket with a compressed thickness of .039" the bore is 4.125 and the combustion chamber volume is 8.7cc

the 9966pt is the felpro stock replacement gasket has a bore of 4.1 inch
and i believe a compressed thickness of .055 which is thicker than stock if i remember corectly

 

i used 1074s when i did mine and so far 1500 miles with no problems. Torqued to 75 ft/lbs using arp bolts.