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8 4 Cam Swap?

This is a discussion on 8 4 Cam Swap? within the Internal Engine forums, part of the LSx Technical Help Section category; Has anyone everheard of and 8 4 cam swap. I was told today by a friend he read something in ...

  1. #1
    Junior Member Dezert's Avatar
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    Cam Tech Needed 8 4 Cam Swap?

    Has anyone everheard of and 8 4 cam swap. I was told today by a friend he read something in hot rod about it. something about changing the firing order on the #8 and #4 cylinders. Any one?
    Last edited by Dezert; 02-24-2009 at 08:57 PM.

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by Dezert View Post
    Has anyone everheard of and 8 4 cam swap. I was told today by a friend he read something in hot rod about it. something about changing the firing order on the #8 and #4 cylinders. Any one?
    I've heard it done, but I thought it was only done on the older small blocks......could be wrong though.
    its supposed to give more torque and run smoother

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    Junior Member Dezert's Avatar
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    Well you Know he is an Old school gearhead maybe he didnt realize I am buildin a New motor. Ill hafta ask Him.

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    Impounded
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    79 T/A -91 Firebird
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    I do know of the small block 4 7 swap so I am subscribed

    EDIT: after some quick research I couldnt find JACK about it.. nothing. so im thinking he meant the gen I 4 7 swap.

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by JoshieDoom View Post
    I do know of the small block 4 7 swap so I am subscribed

    EDIT: after some quick research I couldnt find JACK about it.. nothing. so im thinking he meant the gen I 4 7 swap.
    that's it! I thought I remembered it, but it was the 4 7 swap.....damb joshie your just kickin my butt in here this morning lol

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    Impounded
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    79 T/A -91 Firebird
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    Quote Originally Posted by mark21742 View Post
    that's it! I thought I remembered it, but it was the 4 7 swap.....damb joshie your just kickin my butt in here this morning lol
    eh I wrote a thingy about it back in auto school. It was on HP tv a long damn time ago so I did some research online..

    The 4 7 swap isnt possible in a gen III engine so... yeah. The firing order is different as well.

    Worked 11 hours.. and now this

  7. #7
    cutting and welding mark21742's Avatar
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    here is one on it....i found more, but its a PITA to copy/paste using my phone.....much easier at home on th pc http://www.hotrodders.com/forum/4-7-cam-104638.html

  8. #8
    cutting and welding mark21742's Avatar
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    Quote Originally Posted by JoshieDoom View Post
    eh I wrote a thingy about it back in auto school. It was on HP tv a long damn time ago so I did some research online..

    The 4 7 swap isnt possible in a gen III engine so... yeah. The firing order is different as well.

    Worked 11 hours.. and now this
    11 hours? is that is? lol
    I average 14 hour days and am stuck in the truck using my phone most of the time

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    Quote Originally Posted by mark21742 View Post
    11 hours? is that is? lol
    I average 14 hour days and am stuck in the truck using my phone most of the time
    I wish I could be stuck in a truck.. but building explosives will work.

  10. #10
    cutting and welding mark21742's Avatar
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    Quote Originally Posted by JoshieDoom View Post
    I wish I could be stuck in a truck.. but building explosives will work.
    as clumsy as I am I'll leave that job to you man lol

  11. #11
    Quote Originally Posted by JoshieDoom View Post
    The 4 7 swap isnt possible in a gen III engine so... yeah.
    That's because GM already did it for us.

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    Moderator Firebirdjones's Avatar
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    At the machine shop I worked at part time we did an experiment on a roundy round motor with the 4-7 swap. A little 406. Didn't find anything on the dyno at all except that it seemed to switch the exhaust temps around on 2 cylinders from what they usually are.

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