ls1camaro98

I want to stick a 02 and up Lq4 into my 89 mustang. Using the stock longblock with the 317 heads. Trying to figure out which cam and valvetrain components will be the best for optimal performance and horse power.. I will be using a carb setup. just wondering how much power these motor can make stock short, heads with just a carb intake and a cam and valve train work. and help is appreciated.

01ssreda4

iTrader: (96)

Hit up pred z or Patrick G and get them to custom spec you a cam to your set-up....

ls1camaro98

thanks man. im new to these motors.. was trying to see im someone sold a package with rocker arms, valve springs, cam.. how high can you spin these motors too also?? i was looking at some of texas speed performance stuff. might get on the phone with them tomorrow and give them a call.. thanks alot guys.

Roller406Bu

iTrader: (1)

im running a ms4 and ordered the cam kit from them...victor jr intake, 317 heads milled .020 which aint much...750 dp holley, longtubes, 3600 stahl, 4.10 gears and 150 shot of spray...car runs 10.70's at 128 on spray with traction issues in a full interiored street car malibu...7.30@95 in the 1/8th mile at 36 degrees timing on motor...

ls1camaro98

nice setup. and good times. no offense or anything but i would think with that setup it should be running faster no.. how much does the car wiegh.. how much will that setup make on motor. i wanna try and get 500+ on motor which people have been doing.. how high do you shift????

Roller406Bu

iTrader: (1)

It would be faster in a mustang no doubt...It's never been tuned and ran that first time out...The low compression is killing it but I'm about to take care of that...Lot of variables keeping it from running better like a higer stahl, transbrake etc but its fast to me for a stock cam only car..

adam1803

iTrader: (65)

If your not running boost your going to want to ditch those 317's, like Roller406bu said, that low compression is going to kill you.

ls1camaro98

what kind of heads should i be looking for on this motor????
im going to be running a carb on it and a th400 with a brake and high stall converter hopefuly i can get in the tens with a 3100lb mustang..

adam1803

iTrader: (65)

Some 243's or a ported ls1 casting, something with a smaller chamber then the 317's.

ls1camaro98

yes i understand what you mean. im trying to do this on a budget without spending to much money..

adam1803

iTrader: (65)

ported heads dont have to cost alot, not everyone needs AFR's, TFS, etc.

Even a set of stock 243's with the added compression ratio from the smaller chamber will get you a good deal more power then the 317's. When you mill the 317's a good deal it will change the flow characteristics.

ls1camaro98

so your saying just to buy some 243 heads instead of trying to work the 317's heads. with the stock lq4 and the 243 heads what will the compression ratio be?

NemeSS

iTrader: (127)

they flow the same, but 317 has larger chamber.
u can get down to 10:1 with milled 317 heads and thinner gasket.
but if u need more than 10:1 then finding a smaller chmaber head such as 243/799 and mill to suit. i dont ever go more than .030 on any oe ls head.
may cause intake to manifold alignment issues.

ls1camaro98

well what is the compression ratio with the stock 243 heads. aslong as i can make power im not really worried about the compression ratio. but its going to help with the power.. along with the cam that i will be using.