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4L80E Conversions & Truck Cams Now Available

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Old 02-07-2005, 05:20 PM
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There are not to many large gains between one or the other. One of the main reasons for using a reverse split cam is if you have large exhaust or not a hole lot of back pressure. Using these cams can help from loosing some of that torque. On a normal motor they havent really been proven to be any better or worse then standard cams. They are all pritty close in hp #'s.

Yes, you should be able to use you stock transfer case.

We, use Comp's XER lobes for our cams.

Sean
Old 02-07-2005, 07:22 PM
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A street mannors type of exhaust (2.5 y, cats, catback) could use a more exhaust biased camshaft - Where the larger exhaust lobe holds the valve open longer to compensate for the lack of flow in the rest of the exhaust system.

If you go to the track and run open headers, or say a cut-out, an intake crutch may favor your setup. (reverse split)

Check out this dyno where dual cut-outs were inserted with the use of a 229/226 profile.

A gain of 37rwhp from cut-outs....

*combination*
Old 02-07-2005, 07:33 PM
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Nicely said.
Old 02-07-2005, 07:40 PM
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Sry, that was to leo...forgot to quote
Old 02-08-2005, 10:00 PM
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Originally Posted by Speed Engineering
If you look at 2000 and up 2wd chevys you can see that the cross member hangs lower then the frame about 2". Our cross member allows you to raise it up and make it flush mount with the frame. Lowered trucks drag it a lot. I know mine did all the time.
Where were ya with this a couple years ago before mine dragged and ripped a manhole cover off the roadway. I ended up fabbing my own up. You outta sell a good bit of these its a must have if you sit low.
Old 02-09-2005, 06:35 AM
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Originally Posted by Speed Engineering
There are not to many large gains between one or the other. One of the main reasons for using a reverse split cam is if you have large exhaust or not a hole lot of back pressure. Using these cams can help from loosing some of that torque. On a normal motor they havent really been proven to be any better or worse then standard cams. They are all pritty close in hp #'s.

Sean
Originally Posted by SportSide 5.3
A street mannors type of exhaust (2.5 y, cats, catback) could use a more exhaust biased camshaft - Where the larger exhaust lobe holds the valve open longer to compensate for the lack of flow in the rest of the exhaust system.

If you go to the track and run open headers, or say a cut-out, an intake crutch may favor your setup. (reverse split)
Thank you both for clearing that up for me.
Old 02-09-2005, 07:17 AM
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Originally Posted by Speed Engineering
I think i found a solution. GM makes a autotrac gear with a 32 spline adapter that bolts right into the transfer case allowing for the 4L80E to slide right into it. The only thing else that probably has to be done is to lengthen the drive line.

Sean
Nice Job! Just to confirm, yet again, the Transfer Case from the 4WD 1500's 4L60e will bolt up to this? Or will I need the 4L80e transfer case?

Also, will you guys be offering this adapter?

Thanks!
Old 02-09-2005, 11:59 AM
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Manhole Cover

Yep, I am going to put it up on the site right now. The crossmember will have to be fabed up on the T-Case, shorter rear driveline, and a longer front driveline. Other then that i think everything else is a swap i beleive.

Sean (559)348-0200
Old 02-09-2005, 12:06 PM
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have u guys installed these at your shop? what would a full conversion run installed? PM if possible.
Old 02-09-2005, 12:33 PM
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Yep, we have done several. Parts i think come out to a little over 3000.00. I think it is like 3200.00. And your probably looking around 500.00 bucks in labor to swap everything.

4wd conversion is up now so you guys can check it out also.

Sean (559)348-0200


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