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Cams, Worth it?

This is a discussion on Cams, Worth it? within the Internal Engine forums, part of the LSx Technical Help Section category; I will be stroking my engine soon from a 346 ls6 to a 383. I have 2.5 ls6 heads and ...

  1. #1
    Junior Member 1991ls13's Avatar
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    Cams, Worth it?

    I will be stroking my engine soon from a 346 ls6 to a 383.
    I have 2.5 ls6 heads and a tq2 cam. I`ve seen a couple nice numbers from people with this but i thought it might be to small for a 383. I was thinking of somewhere like 236-242 114+2.....Would this even be a big enough difference to be worth it because ive seen similar (ms3`s) with roughly the same HP-tq numbers as the tq2.

    Can anyone tell me if its worth it to change or not. Street strip car and DD. My Tq2 is ideal IMO for DD, maybe just a hair `bucky` sometimes.

    Or anyone recommend a cam with this set up and heads. Thank you

  2. #2
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    The extra cubes will smooth out the "buckyness" on your current setup as well as shifting your powerband down the rev range a bit. It should be a kitten at part throttle, but you may want to invest in the company of your favorite tire brand when you go WOT.

    Sent from my DROID2 using Tapatalk

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    Junior Member 1991ls13's Avatar
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    silver light blue,
    1991 nissan 240sx hatch

    I`m running 275 40 18 Nitto Nt05`s right now. Car weight is 2900lbs...240sx...

    Its just ive read a few where people think 240-244 rides stock lol so imm trying to get more info and insight on my set up etc

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    With a light car like that, you can definitely get more aggressive with you cam and be plenty streetable. Plus, moving the powerband back up with more duration might help with traction.

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    Slow'er'Ass Mr. Luos's Avatar
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    Honestly won't be much of a power difference.
    The lightweight car will assist in that change making a very minor change, but to me....not worth the $400 plus time/money for the install.


    How a cam drives is mostly tuning. Get the tune spot on, even the big ones won't buck much (although at at a certain point it is just going to happen).
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
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  6. #6
    Auto Painter RyanJM's Avatar
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    I run a ms3 cam with a 113+3on a stock cube bolt on ls1 and rides rather smooth for an a4 and I haven't even got the ported heads on yet although I do have a good tune thanks to my friend who own a shop that does a lot of cam swaps. I love the cam and pulls like hell once you get pass 3500 rpm and over 40mph where I actually have traction.
    1998 Trans Am 85k miles.
    Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
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  7. #7
    Junior Member 1991ls13's Avatar
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    silver light blue,
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    Thanks for the advise people. I figured it might bump my hp up 20 or so and loose maybe a few tq which isnt a problem, like you mentioned before, i have a lightweight car. Just trying to hear what people seen and have that worked best for a 383 ls6 2.5 prc heads with most bolt on`s and was a DD, street,strip car and would like to be shifted at 6800-7100rpms.

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    Junior Member 1991ls13's Avatar
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    silver light blue,
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    no one else want to chime in

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