TxFireman1972

iTrader: (8)

Putting together a 5.3L for my 89 Mustang Coupe. I've talked to Matt@Texas Speed about a couple of cams, but I found a good deal on a low mileage MS3 cam and picked it up. Today I picked up a set of 243's to put on the motor.

I've read till my eyes crossed and haven't found a solid answer. My questions is how much can I mill the 243's if I'm running the MS3 on my stock LM7? I know the PTV will need to be checked when it goes together, but trying to see if there is anyone running this combo, or someone that give me more info. Thanks!!

JakeFusion

iTrader: (7)

If you want to keep clearance north of .060" I'd stick to about .010"-.015" max on the mill. That'd get you down to 62cc chambers which will help bump the compression a bit.

TxFireman1972

iTrader: (8)

Actually have decided not to run the MS3 I picked up. So I'm back on the hunt for a cam lol.

JakeFusion

iTrader: (7)

What are your goals? Budget? If you can look at the cam within the spectrum of the entire package you can get close to what you want within a budget.

TxFireman1972

iTrader: (8)

Car will definitely not be a daily driver. Just a "toy". It will be driven on the street some, but not a lot. Mainly weekend cruising and cruise nights. Will be at the track as much as I can.

89 Mustang Coupe
Has a Auburn Pro rear end with 4.10s
TH350 with Coan internals and reverse manual valve body
Picking up a 4K stall tonight
5.3L
Milled 243's (amount to be determined)
Victor Jr
MSD 6010
Holley 750
Aermotive SS Fuel Pump

JakeFusion

iTrader: (7)

I'd do something like a 235/243 108+4 then with that intake. You'll have to flycut the pistons, but then you can mill the heads as much as you like.

Victor requires different camshaft valve events compared to a FAST. It likes overlap and a much earlier intake closing point.

JakeFusion

iTrader: (7)

Actually, EPS has a shelf ready cam for those types of intakes:

http://www.engpwrsys.com/index.php?a...d&productId=12

236/248 108. That'd rock.

TxFireman1972

iTrader: (8)

Yeah I actually contacted Geoff to see what he could do for me on a cam. Anxious to hear back from him.

JakeFusion

iTrader: (7)

Because it's going into a lighter car and using a carb, he'll probably tone it down a notch.

windmill

iTrader: (4)

ill be watchin this post,,,, im loking for a cam that might work in my mustang too,,, but i have a 6.0 motor lq4