LB7: What cam would be the best for 2.6 SB pulling truck using Allison trans?

[S Phinney]

Keep guessing. I said no cheap junk

There isn’t many choices there. I think maybe three companies that have made them.


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[hntngkd]

Keep guessing. I said no cheap junk

Winberg?

 

[Micheal Tomac]

Were of these motors that broke a narrow rod billet crank running AF cams?

 

[x MadMAX DIESEL]

Did you make a decision? I’m in the market for a cam change aswell


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[05_LLY]

I wouldn’t hang my hat on af cams at all. At least 2 broke cranks in the 3.0 LPDT class this season. Both billet cranks. It’s a Duramax thing.....

3 new big dollar units broke that I know of in 2019..yet my stock junker lly crank 3 seasons old... 1350 hp/2200lbft ,95 hooks, 75 dyno pulls, had hairline crack after all that. Another new stocker for 1100 bucks ready to rip!!

That being said, an engine needs refreshed after all that any ways, I can readresh almost 4 engines with new stock cranks beforni even paid for a Bryant ( only one I'd ever use) that 12 pulling seasons... chances are something would happen to the billet crack in 12 years you would need to buy a new one any how!

 

[05_LLY]

Did you make a decision? I’m in the market for a cam change aswell


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Pic a good af cam, we tested a bunch of cams on Engine dyno last winter, installed everywhere from 98* to 114*...the differences could have be dyno error it was so little.

 

[Micheal Tomac]

Wagler stage 2 AF & SoCal 6480 AF are so close in specs either one would be a good choice.

 

[Yellow Jacket]

Wagler stage 2 AF & SoCal 6480 AF are so close in specs either one would be a good choice.

Curious what the specs are on a Wagler Stahe 2 AF.... I got a customer wanting to put a 2.6 smoothbore together.

 

[ctodd36]

When I put together my 2.5/2.6 motor we used a 6480 AF cam and it seemed to work very well with my set up.


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