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FE Technical Forum / 390
« on: May 10, 2011, 12:38:17 PM »
It appears from Jays book on larger displacement FE engines, and from the other forums, that a std 390 GT from '66 on is a pretty anemic unit.
The stock GT intake and exhaust manifolds, as seen in Jays tests, would seem to limit them to 275 hp at 4800 rpm.
The 352 is just 40 hp shorter.
It appears that it is almost mandatory to install a decent set of headers and a good intake to get the 390GT close to Ford's advertised hp levels of 315-335 hp @ 5000.
How much does a solid lifter cam like the 270S affect the output? 5700 rpm and more hp yet?
Are there any dyno tests hiding at jay's supporting 390's?
I am amazed how the stroker kit wakes the FE up; 400+ hp seems to be just about assured as the huge inches tame wilder cams, and the new rods seem to be a blessing for reliability.
The stock GT intake and exhaust manifolds, as seen in Jays tests, would seem to limit them to 275 hp at 4800 rpm.
The 352 is just 40 hp shorter.
It appears that it is almost mandatory to install a decent set of headers and a good intake to get the 390GT close to Ford's advertised hp levels of 315-335 hp @ 5000.
How much does a solid lifter cam like the 270S affect the output? 5700 rpm and more hp yet?
Are there any dyno tests hiding at jay's supporting 390's?
I am amazed how the stroker kit wakes the FE up; 400+ hp seems to be just about assured as the huge inches tame wilder cams, and the new rods seem to be a blessing for reliability.