5.3 LM7 build
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Joined: Nov 2017
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5.3 LM7 build I'm new to this forum group so not sure if im in the right section. Anyways im building a 5.3 LM7 for either a 240sx or a s10. I am trying to decide what internal parts i will need to make roughly 350hp to the wheels. I will be getting the heads resurfaced with new arp head studs and headgaskets. From what ive read the best cam for a lighter vehicle would be the ls6 cam because they produce more power on the higher end but i know it has less torque but in a roughly 2000-2400 pound vehicle i would assume that torque loss wouldn't be a big deal. Would like to know if anyone has used a comp cam or any other brand besides just using another LS cam. The one part im really confused on is what i should do for the valve train because once I swap cams wouldn't i want to change out the rockers/push rods and i know the valve springs forsure. Should i just get those parts from another LS engine or just go buy aftermarket ones off summit. Trying to keep the build on the cheaper side so would like to not spend a whole bunch of money but i also understand its not cheap to build an engine. All help is appreciated.
TECH Regular
Joined: May 2015
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Why are you doing ARP studs if you are trying to keep things on the cheaper side?!!?! Doing this wrong in my opinion.
Swap the cam once and you will be disappointed with the ls6 cam. Contact BTR or get anything but the LS6....
Swap the cam once and you will be disappointed with the ls6 cam. Contact BTR or get anything but the LS6....
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Joined: Mar 2014
Posts: 7,192
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From: Ohio
I'm new to this forum group so not sure if im in the right section. Anyways im building a 5.3 LM7 for either a 240sx or a s10. I am trying to decide what internal parts i will need to make roughly 350hp to the wheels. I will be getting the heads resurfaced with new arp head studs and headgaskets. From what ive read the best cam for a lighter vehicle would be the ls6 cam because they produce more power on the higher end but i know it has less torque but in a roughly 2000-2400 pound vehicle i would assume that torque loss wouldn't be a big deal. Would like to know if anyone has used a comp cam or any other brand besides just using another LS cam. The one part im really confused on is what i should do for the valve train because once I swap cams wouldn't i want to change out the rockers/push rods and i know the valve springs forsure. Should i just get those parts from another LS engine or just go buy aftermarket ones off summit. Trying to keep the build on the cheaper side so would like to not spend a whole bunch of money but i also understand its not cheap to build an engine. All help is appreciated.
It does seem like you need quite a bit of guidance.
We have complete rebuild kits for your setup for a very good deal.
You dont need arp studs either or bolts really.
For a complete kit youre looking at 699 shipped.
130 for lifters and trays and that gets you a complete internally new engine built for better power and durability.
Cam kits start at 500 and go up. That includes cam and matched springs.
You want a good budget, we have all that plus tech support.
We have complete rebuild kits for your setup for a very good deal.
You dont need arp studs either or bolts really.
For a complete kit youre looking at 699 shipped.
130 for lifters and trays and that gets you a complete internally new engine built for better power and durability.
Cam kits start at 500 and go up. That includes cam and matched springs.
You want a good budget, we have all that plus tech support.
