spiro27

i have decided on a ms3 or ms4 cam for my 01 trans am 6speed. whitch setup wont have ptv clearence prob. ms4 with ls6 stage 2.5 heads or ms3 with stage 2.5heads. or would the ls6 1.0 heads be beter for ptv clearence. witch heads would you guys rec with the ms3 or ms4 cam. thanks have longtubes and suporting mods done already. thanks for thelp guys.

MYSTIC-1SC

iTrader: (14)

What kind of budget are you on and do you plan on having the heads milled to bump compression or anything. Just curious on what your looking for out of this build. You should definety give Texas Speed a call and they should be able to get you the answers your needing.

Sales2@Texas-speed

iTrader: (5)

^^This guy has the right idea! Are you wanting the best piston to valve clearance, or best performance? What other mods are on your vehicle? What goals do you have for this swap (HP, torque, ET's, etc)?

spiro27

im looking to make 450rwhp. 2 to 3k. should i have the heads milled for compression. i just dont want to worry about ptv clearence.

spiro27

i have longtubes full exhaust ls6 intake slp lid maf belows.i know i will prob have to change rear end gear.

Sales2@Texas-speed

iTrader: (5)

What power are you making now with the stock heads/cam combo?

Dracer35

iTrader: (7)

Ive been looking into this also and I keep finding mixed info on the MS4 cam needing to have the pistons flycut or not. I am currently building a late year corvette ls1 block with flat top pistons and stock(not milled) 243 heads with patriot extreme springs and stock ls2 intake. I have a MS4(111 lsa) cam sitting here for when I get the block back but Im not sure if I should change cams or not. Im thinking the tqr v.3 might be better suited for my mild build.

spiro27

im makeing around 335 to rwh

CNTLSE 1

iTrader: (11)

I had MS4 and stage 1 PRC LS6's and made 432 running out of injector. Pistons are stock also. no flycutting

spiro27

what do you guys think of the 5.3 heads stage 2.5 heads. the valves are larger than the ls6 1.0. will it have more compresion istent that better? the larger valves whould make ptv clearence even tighter? what do you guys think. ls6 1.0 or 5.3 2.5 heads.

SOMbitch

iTrader: (8)

I would take a 243/799 every time.....