Who wants a little LT4 manifold??
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It won't be til after my motorplate comes in next week from Mike Jacobs, as I'm going to drop the motor 1/2" or so. I know a stock height stealth ram will clear the windshield, so if I drop it that much it'll clear with the direct port plate on there 
I have a new cam on the way as well, but that is a few weeks out... a "fat lobe'd" 255/263 on a 108 which should be a good balance between N/A and spray for this motor and new intake. It will be my 7500rpm HR experiment 
I have a new cam on the way as well, but that is a few weeks out... a "fat lobe'd" 255/263 on a 108 which should be a good balance between N/A and spray for this motor and new intake. It will be my 7500rpm HR experiment Thread Starter
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From: Spokane, Wa
I'll do a track outing after the intake swap by itself to see real world gains/losses with these things. I honestly don't think it will pick up at all, the cam I have in here now is totally wrong (big split, 105 lsa, etc) for a big runner big plenum intake like this stealth ram. After the cam swap I think it will pick up BIG though.
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It won't be til after my motorplate comes in next week from Mike Jacobs, as I'm going to drop the motor 1/2" or so. I know a stock height stealth ram will clear the windshield, so if I drop it that much it'll clear with the direct port plate on there I have a new cam on the way as well, but that is a few weeks out... a "fat lobe'd" 255/263 on a 108 which should be a good balance between N/A and spray for this motor and new intake. It will be my 7500rpm HR experiment
I have a new cam on the way as well, but that is a few weeks out... a "fat lobe'd" 255/263 on a 108 which should be a good balance between N/A and spray for this motor and new intake. It will be my 7500rpm HR experiment 
COMP couldn't make the exact grind Llyod wanted on the billet LT1 core because of the LSA, so he had to open it from 107 to 109 but built in an extra degree of advance to compensate. Not sure why they couldn't do 107LSA but could do the same grind on a 109, but I'm no Cam Guru so I'll leave that to the pros.
Still figure it should make north of ~625 on motor, but now with the 109LSA I wonder what will happen if I hit it with, say, a 250 shot
.I know I've said it before, but best of luck on your build. A 7500rpm HR screamer LT1 would be a hell of a beast to see. It's just a street car eh?
Last edited by Puck; Feb 16, 2011 at 11:10 PM.
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From: Spokane, Wa
I think you'll be fine on the 109 lsa, the overlap area will be a lot more flexible with those heads and intake and the torque will be FLAT. How many degrees advanced is it? Without knowing duration I'd venture a guess of a 105 ICL
