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second place is the first losr
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204 Posts
Discussion Starter · #1 ·
i have tried a comp cam x4270h but im really not happy with the performance
so i will try another cam and need help for choosing the best one here my setup cut-box chevy k20 dana 60 14 bolt axle 4.10 ratio 40 inch tire th400 np205 t-case
350 flat top l2256 piston
vortec head gm performance intake
12-243-3 comp cam
edelbrock 750
stock torque converter
long tube open exhaust

i run the truck always on low gear
 

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comp web sight suggest that you would use a 2200 stall converter with that cam. I would think that you would have a lot more power that you say you do. Did you install it straight up. (stock timing marks). You might want to double check your cam timing. Those cams run pretty well at 4 degrees advanced if I remember right. Maybe some one else will remember for sure.
 

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a shade tree mechanic
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482 Posts
I also will agree it needs a bigger stahl probably around a 4000 stahl would be about right. I also agree on needing more gears. I also mudd bogg and I have 35 inch tires but I run a dana 300 transfer case behind a turbo 350 and I have 410 gears you definatley need something in the low to mid 5's to make them turn
 

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second place is the first losr
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204 Posts
Discussion Starter · #12 ·
and the truck was always run on 4 low gear it never goes on the road do you think my gear is ok.if not did somebody know if i can find 5.86 gear that fit my current carrier .
 

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a shade tree mechanic
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482 Posts
no you will need to get a different carrier. the carrier you have is probably stock and you will need something better. the stock carrier will probably on handle gears up to 456 If I was you I would run a full spool. Here are a couple of numbers you can call to check on the gears Randy's Ring and Pinion 1 877 349 1369 and west coast Differentials 1 800 446 0950.... They may also have full spools but I don't know
 

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second place is the first losr
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204 Posts
Discussion Starter · #16 ·
i also have an old setut of solid roller cam with rev kit from iskenderian but the only thing i know about cam its they have about 450 lift with 1.5 rocker anyone have tried solid roller in mud truck how it perform.
 

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chevrolet327 said:
i also have an old setut of solid roller cam with rev kit from iskenderian but the only thing i know about cam its they have about 450 lift with 1.5 rocker anyone have tried solid roller in mud truck how it perform.

I assume you mean .450 lift at the lobe and around .675" at the valve?
 

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I don't think its a solid roller then- mayb eits just a solid flat tappet. .450" at the valve isn't really in solid roller territory unless you need EXTREEMLY fast opening ramps for restricted circle track racing even then though going with a higher rocker ratio would make more sense.
 
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