greenvortec97

iTrader: (1)

My heads have been ported and valve job'd. my head guy is waiting on me to call him and tell him how much to mill off the heads now.

how far could i go on these heads with the dish piston lq4 6.0 motor?
i wanna run the TSP v2 cam 232/234 .595"/.598"

i've been thinking a .030 would be a little much

parks450

iTrader: (17)

I'd go .020, either way you need to measure. I had that cam in my 5.3 with flat top pistons. so I would think you would be fine going .020

PREDATOR-Z

I would do just a cleanup mill .005 or so.

greenvortec97

iTrader: (1)

i kinda wanted around 10.5:1 compression though

PREDATOR-Z

Then measure ptv with heads unmilled and after that decide how much you can mill. You will not find your answer on the net; you'll find it on your motor.

greenvortec97

iTrader: (1)

okay cool thanks for the heads up. it'll take a while since i dont have the cam yet lol. could i just take the specs for the stock lq4 cam and get the difference out of the tsp cam?

PREDATOR-Z

No, that is not how it works. To do it right you'll have to install the cam and measure on your motor.
This ain't no Lego set, do it right.

greenvortec97

iTrader: (1)

Well ****. I guess I'll order the cam, set it in, measure ptv and add gasket thickness I suppose.

PREDATOR-Z

unless you use MLS gasket, then you can actually do a real mock up. I've done it your way when using graphite. (one of the reasons why I like head studs)..

anheuserbusch08

iTrader: (11)

Mill those heads .030 I ran a 240 244 508 612 111+3 lsa in my lq4 s10 and ran 11.3 @ 122 MPH on a ported ls1 intake,

PREDATOR-Z

You do know that the dish in a LQ4 are not actually valve reliefs right!

greenvortec97

iTrader: (1)

235/243 in a friends lq4 swapped 90's c1500 and the heads are milled .030as well. Matt @ tsp said I'd be able to fit a tsunami as well on the phone. Its not that I don't wanna believe it but I just wanna double check. Unless there's a way to know how far the piston sticks out of the hole im not gonna take a risk like that.. Not calling anyone a liar I just wanna make sure my investment runs good

BrntWS6

iTrader: (7)

TSP milled my 243's .020 with a torquer v3, 10.6 compression.

anheuserbusch08

iTrader: (11)

I know but my et and MPH is worth the risk

Way2Fast

iTrader: (1)

Not if his **** blows up. Its always easy to risk someone else's engine. Do it right, stick the cam in and measure. The time it takes to make sure its right could save you a big headache later.

anheuserbusch08

iTrader: (11)

I've been running the same setup he is trying to do for the past 2 years!!! I know the risk and its been proven to last (with proper tuning)

02_Orange_D1SC

iTrader: (27)

mine are milled .030 on my LQ4 im right at 10.8.1 with the stock MLS gaskets running a 226/230 600/600 AI told me i could have went considerable bigger if i wanted without any PTVC problems.