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2FastLX · 03-12-2002, 07:45 AM

I have been financially forced to settle for a stock 94 5.8L bottom end and I have a set of Canfield heads I am going to use on it along with a Victor 5.8L intake. These Canfields have been shaved a couple times and were tested at 60cc chambers still. The block I am buying came out of a 94 F-150 or Explorer so I assume the pistons will be flat tops. Am I correct in my thinking or do these pistons have valve reliefs?

Either way, what is the biggest cam I can get away with? I'm hoping to go with something like the Comp Cams XE274HR, or maybe even a little more aggressive. I suppose if I have to cut the pistons I'll have to see what I can come up with.

The XE274HR specs are:
2200-6200rpm range
274/282 advertised duration
.555/.565 lift
112 degrees lobe seperation

Thanks.

03-12-2002, 07:45 AM	#1
2FastLX The Photoshop Guru Join Date: Feb 2001 Location: Mecca, Indiana Posts: 1,419	351/5.8 Guru's - Need cam selection help I have been financially forced to settle for a stock 94 5.8L bottom end and I have a set of Canfield heads I am going to use on it along with a Victor 5.8L intake. These Canfields have been shaved a couple times and were tested at 60cc chambers still. The block I am buying came out of a 94 F-150 or Explorer so I assume the pistons will be flat tops. Am I correct in my thinking or do these pistons have valve reliefs? Either way, what is the biggest cam I can get away with? I'm hoping to go with something like the Comp Cams XE274HR, or maybe even a little more aggressive. I suppose if I have to cut the pistons I'll have to see what I can come up with. The XE274HR specs are: 2200-6200rpm range 274/282 advertised duration .555/.565 lift 112 degrees lobe seperation Thanks. __________________ Project: 1988 Coupe - EFI 5.8L Twin Turbo with Victor intake, Canfield heads, F303 cam, March aluminum underdrive pulleys, TKO (or T56 if funds permit), PBR twin piston calipers and 13" rotors up front, 94 Cobra rear calipers and 12" rotors on the rear, 3.73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels. "The GR-40 kit installation is now complete, and the humble Fox-chassis car will now out-corner and out-stop a ZR-1 or a Viper, and support massive horsepower additions with perfect balance." Griggs Racing ICQ# 42269241 Last edited by 2FastLX; 03-12-2002 at 08:02 AM..