Squidwardo

N00b question, obviously. Just need someone explain something to me... I've been hearing a lot that not all heads work with all cams, or vice-versa. Why is this so?

I'm wanting to install a set of Advanced Inductions 232 cc cnc'd 243's by fall/winter of this year, using the cam I already have (vengeance racing vindicator, 240/244 .608/.596 112+4) The car will see very little track time, maybe none at all (stock 10 bolt with 4.10's. I'd rather not spend money on rebuilding/replacing anything). It will be used more as a nice day/weekend daily driver with a little more oomph in case someone wants to show off. I don't mind a car being a little uncomfortable on the street. Am I making the right choice in doing this?

HCI2000SS

iTrader: (2)

Will that cam clear those heads?

Squidwardo

Car has stock 241's as it is. No flycutting had been done by the previous owner who installed the cam, but PTV clearance will be checked for sure when the 243's go in.

scotty2000ss

iTrader: (2)

In for answers. I'm curious myself what's the cut off point with lift and those heads.

scotty2000ss

iTrader: (2)

Will you be getting a bump in compression with those heads?

Squidwardo

Ah. That is another question I forgot to ask. Should I do so? Worst case scenario is that there will have to be a valve relief cut into the pistons, which I understand results in loss of compression. I'd assume that will have to be made up by milling, but how much is too much for a street car? I'm wanting reliability to be the main focus, with power as a close second. lol

ULTIMATEORANGESS

iTrader: (4)

is a local tuner/builder working with you on this?

Squidwardo

As of now, no. My experience so far is that performance shops always try to push their aftermarket heads. I will be having someone dyno tune the car afterwards, of course.

I'm wanting to do all this on a budget, and I have been recommended by plenty of enthusiasts that cnc'd 243's would be the best bang for the buck. I just want to make sure I'm not overseeing something, or making a mistake I'll regret soon after.

Fry_

I'd consider getting either TrickFlow 220 as cast heads from BTR or PRC 225 as cast heads from TSP. If you don't already have 243 heads they wont cost that much more and there decreased valve angle will improve your piston to valve clearance.

MonmouthCtyLS7

iTrader: (6)

That cam is fine, no clearance issues. Looks like a good setup to me, Go for it!

Rise of the Phoenix

iTrader: (27)

Yeah, as long as those 243's have not been milled, you should have adequate PTV clearance. With that said, if you're going to run that big of a cam, I personally would mill the heads and fly-cut. With a cam of that size, compression is your friend, and will assist with the "low end" power/torque. 11.5:1 compression would be good on pump 93 with a very good tune in it. A lot of companies have these big cams that were designed to clear stock heads. T-Rex, Vindicator, Hellion, Polluter, Godzilla, TSP MS3/MS4, etc. Just make sure you have your valvetrain setup right.