LQ4 - Have and need.
LQ4 - Have and need. I have a LQ4. I want to mod it for my 80 malibu. I need a healthy cam, but wonder if the lack of compression is going to kill it? Aftermarket heads are out of the quesiton at this point, should I swap heads to raise compression, or just rock out? The car will be injected, and will have some efi tuner available. My buddy got MS4............I was thinking g5x3, or trex but wonder about clearance with changing heads vs compression....? Insight would be very helpful...... I have searched but cant find many non stroker build ups. I think Dave from Cincy put one together, but I cant find it.... maybe lt1 dave or something?
Thanks
Thanks
Last edited by BLWN1; Apr 5, 2007 at 11:06 PM.
LS6 Heads, cheap, instant compression boost + good flow. I've heard you can get stock castings from Patriot cheap.
MS4 and bigger cams (especially trex) are pretty much a drag setup, even with 6.0L to work with. Compression helps make up for a major loss of low-end torque. However, cutting valve reliefs is done all the time on LSx engines, and is really easy out of the car.
Research som the LS2 combos out there to see what power they are making with what parts. You'll basically have an iron block LS2...
MS4 and bigger cams (especially trex) are pretty much a drag setup, even with 6.0L to work with. Compression helps make up for a major loss of low-end torque. However, cutting valve reliefs is done all the time on LSx engines, and is really easy out of the car.
Research som the LS2 combos out there to see what power they are making with what parts. You'll basically have an iron block LS2...
Originally Posted by hammertime
1. MS4 and bigger cams (especially trex) are pretty much a drag setup, even with 6.0L to work with. Compression helps make up for a major loss of low-end torque.
2. However, cutting valve reliefs is done all the time on LSx engines, and is really easy out of the car.
...
2. However, cutting valve reliefs is done all the time on LSx engines, and is really easy out of the car.
...
Thanks again
