lm7 build need help!
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Joined: Nov 2012
Posts: 3
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From: oran missouri
lm7 build need help! planning on building and lm7 for my 1987 trans am. new to these motors and wantinh some info or combo suggestions. race 1/8th mile and keep it fairly streetable. Car has th-350, ford 9 inch, spool and 456s. all umi adjustable suspenion and sub frame connectors. thanks for all the input and suggestions
Keeping the bottom end stock? What are your goals for track results or horsepower?
For the cheapest good running engine i would mill heads and get them ported with larger valves, fast 92 or a ls6 intake, or get the bbk ssi if you dont have an ls6 and you get a good deal. and a proven cam.
I have a build thread with a 5.3l you can look at. I had ls1 intake valves in the heads and had a bbk intake with the tsp 233/239 cam. It ran really good but it spun a bearing before I could get to the track.
For the cheapest good running engine i would mill heads and get them ported with larger valves, fast 92 or a ls6 intake, or get the bbk ssi if you dont have an ls6 and you get a good deal. and a proven cam.
I have a build thread with a 5.3l you can look at. I had ls1 intake valves in the heads and had a bbk intake with the tsp 233/239 cam. It ran really good but it spun a bearing before I could get to the track.
