Wondering about a cam and what kind of experiences you guys have had with cams on LT-4 383. I am putting my engine back together and am getting my lt-4 heads p&p right now. I am thinking 240's duration and about .600 lift on a 106 or 108. I plan to spray 175-200. Thanks for input

 

I know i am new here, but can i get some comments or technical discussion

 

Your best bet would be to talk to people that custom grind the cams. They'll taylor the cam to fit your heads and power needs. Call Comp Cams, Cam Motion, Bret Bauer, etc. Do a search for people who custom grind cams.

 

Harold at Port Pros and I are going to sit down soon to pick a custom profile for my 396 LT4.
Waiting on the heads to be done so we can flow them.

I would consult Harold (Sponsor -->) or Comp Cams tech line.

 

Thanks for input i will contact harold and a few of the other sponsers

 

Just lookin at those #, its going to be a wild cam. As stated before talk to the cam grinders, have a complete list of parts and go from there.

 

Just be sure you have a good exhaust side (dur/lift) for a nitrous cam, you want to get that stuff out of the cylinder.

Tony.

 

What are the advantages to running a 106 or 108 lsa would that make a "wilder" cam idle better? Seems like it would hurt u a little on the gas. Is any one running a 383 with a wild cam on such a tight lobe and how does it act for you?

 

I'm not a cam guru, but having that tight of a LSA makes it harder to tune and causes havoc with the O2's (too much overlap, causing a false lean condition). My cam is on a 109, and I just switched over to a open loop tune to make things a little easier. I wouldn't recommend it though unless you have a wideband to tune with.

 

these are some of the things that i was concerned about. preciate the info

 

most of the comp cams cam techs SUCK at custom cams!!

 

yeah i know, that is who i first talked to and i didn't get alot from them except confusion. that is why i came here to find some real feedback from people that has tried different cams with strokers

 

i have the perfect cam for you. dynoed 440 hp 480 tq (unless you want more) lemmie see if i can get the numbers off it

 

i would like to see those numbers, very interested

What heads? any work done? how many cubic inches?

Those are great dyno numbers