Wilcox;1945317 said:ya i thought about all of the wiring work and mounts and other bs, and im throwing the v8 idea out the window. if i go 7mgte i still have to buy an intercooler and piping and should probably go through it and make sure the block is decked and it is nice and balanced. i priced a 7mgte at 1500 and thats without intercooler or any other misc. mods. i think im going to do a 7m block with a 5m head itb's and bc stage two cams. how does that sound?
For starters, you'd basically be making a 6M, and it's not worth it, especially in a big fat MKIII. ITB's are also half of your budget in cost. Cams won't make enough difference, not to mention they don't make cams for the 5M.
Wilcox;1945514 said:if i could find a 7mgte for that price i would not argue or look at it twice, but i dont know where to find used engines like that except places like jdmenginedepot.com. also i want to do a 5m head because it ups the compression ratio and its easeir to set up itsb's with the intake runner design of the 5m head. i also believe that using the 5m head slims the chances of eating HG's in the future.
Not higher compression, especially with the lack of aftermarket pistons unlike the 7M. Also, because of the head design, it would be more prone to HG failures, not less. There's no real difference that would make ITB's harder or easier on either engine.