Help me pick a cam
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Joined: May 2003
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From: south louisiana
Right. Swapping heads will move the valves 1/8" closer to the pistons. The 86 mustang 5.0 HO had a cam with a 266/266 duration and a .445/.445 lift with the same heads. The B303 is about the hottest cam you can use with these heads. (284/284 duration and .480/.480 lift) without problems. Adding more cam doesn't help with these heads anyway.
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Joined: May 2003
Posts: 11,141
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From: south louisiana
It's possible. Total lift isn't the only factor in piston to valve clearance, duration and the timing events also have a lot to do with it. On the exhaust stroke, the piston chases the valve up, then just before it reaches TDC, the intake valve starts to open, then chases the piston down on the intake stroke.
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Senior User
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yea your right. I was thinking the E cam would give me more room since it has less duration than the B cam. But I will also have more lift.I wonder if there is any way I can measure to see how much lift I can run?
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From: Ottawa, Ontario
Originally Posted by mvvette97
I wonder if there is any way I can measure to see how much lift I can run?
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Hotshot
Joined: May 2003
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From: south louisiana
The answer will also depend on who you talk to there as well. I know the B cam's been used with the E6SE heads and the pistons they had under them. I got the same answer from a counter guy at a Ford Racing dealer too, but have since learned otherwise. I don't recall who or where, but in my travels on the net, I have run across a few guys who have used the B cam with these heads. One site was a bunch of guys who were playing with Crown Vics and such, do a search and you'll run across them.
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Originally Posted by baddad457
The answer will also depend on who you talk to there as well. I know the B cam's been used with the E6SE heads and the pistons they had under them. I got the same answer from a counter guy at a Ford Racing dealer too, but have since learned otherwise. I don't recall who or where, but in my travels on the net, I have run across a few guys who have used the B cam with these heads. One site was a bunch of guys who were playing with Crown Vics and such, do a search and you'll run across them.