GT-CORDY

Hello all Iam in the market for a short deck 427 lsx build or a tall deck version. The combo will be twin turbo'ed in a mustang. My orginal plans was a 540ci bbc with twins but I might be pushing it as far as room goes in the engine bay because I plan on a/c, p/s and the rest of the acc drive brackets. So this puts me where Iam at today. My goals are 1000rwhp plus on pump gas and meth if its possible. Iam new to the LSX game so thats why Iam asking you guys. But is it worth it to go with the tall deck lsx block or just stay with the standard 427 lsx build? Thanks guys

Sales@Tick

iTrader: (3)

I'd use the tall deck, a 4.0" stroke and use the added deck height to gain compression height with the piston.

What is the induction package going to be comprised of? I.E. heads and intake manifold?

GT-CORDY

All Pro heads, not sure on manifold but maybe a carb style manifold and elbow? Not sure what would be the best for this. Also how much of a pain in the *** is it to get the acc drives, timing chain, timing cover ect to fit with the tall deck? I was probley looking in the 454ci range with the tall deck.

Slowhawk

iTrader: (12)

A 427ci standard deck with a single turbo, pump gas and meth hit's 1000rwhp no problem. So twins are easier.

Tall deck can be more expensive due to the intake ect,never mind take up more room.

Sales@Tick

iTrader: (3)

Good choice with the heads...which All-Pro heads are you looking at, I'm guessing you're looking at the All-Pro single plane as well?

I honestly have no idea about the acc. drive set-up with the tall deck. We've done short deck LSX blocks before, but not in a mustang. What kind of mustang...hatch, trunk car, SN95....?

If it were mine, and it's not, I'd do a 4.125x4.125 with a 6.125 rod which would give you a 440.

GT-CORDY

Not sure on the exact heads but from the research Ive done All Pros are the way to go. Also not sure on which manifold hopefully someone can push me in the right direction with that also. The car is a 03 Mustang gt. Is the 440 a LSX short deck block? Thanks

GT-CORDY

I have heard this from other people also. Thats what makes me think the short deck is the way to go. Its more of a street setup so high hp pump gas/meth is on my list. I just wasnt sure if the tall deck and extra cubes was needed. Thanks again.

LilJohn

Short deck and the shortest rod you can fit.

Piston dwell is not your friend.

GT-CORDY

Thanks for the advice.

Slowhawk

iTrader: (12)

My personal car is a resleeved ls2 427 with a 88mm turbo. Perfect street/ strip 1000hp combo

GT-CORDY

Would the twin turbo idea be a benefit over a big single? I was thinking of twin 76's but not sure of the best turbo setup.

miatainthe10s

Yes spool sooner and not run out up top.

427

iTrader: (3)

I would use the short deck for sure, and 76 or smaller turbo's. The normal 6.125 rod 4 inch stroke stuff lives well at your projected power level. Many piston companies make great parts that will work.


Kurt

GT-CORDY

I would like 1k to the wheel on pump gas/meth and push it to maybe 1000-1500 on race gas but will live most of the time on pump and put it on kill if need be lol.

Sales@Tick

iTrader: (3)

Which 88 do you have?

Slowhawk

iTrader: (12)

Gt47/88 I think. It has a 55 wheel if memory serves me. Spooling is not a problem but I have a t400 . 3.00 rear gear.

Jose at forced inductions hooked me up. He always nails the turbos for us.

GT-CORDY

What about the new dart iron block? Would it be worth it to get one of those or buy the LSX block?

GT-CORDY

Anyone?

Quick Carl

I would stick with the std deck 4.125 bore x 4" stroke that has been proven. We have a ton of those in similar applications in street cars that have worked very well. The twins are more responsive if you have the room to package it in the engine compartment.
There is a lot more info on our web site here;
http://www.erlperformance.com/home-domestic

Sales@Tick

iTrader: (3)

same here Jose is very knowledgeable and very easy to work with.he provides my turbos also.

That combo sounds very nice.