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#1 |
Registered User
Join Date: Nov 2005
Location: Denton,TX
Posts: 61
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Comp Xtreme 4x4 Cam
Does anybidy have experience with running a Comp Xtreme 4x4 cam? I am rebuilding the top end of my motor and am looking for some good low end grunt. I will have vortec heads, air gap intake, and 650 Edelbrock. Any ideas?
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#2 |
Junior Member
Join Date: Apr 2006
Location: Eufaula, OK
Posts: 103
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Re: Comp Xtreme 4x4 Cam
I just put a Comp 270H Magnum in my 327. It's got tons of low end torque. Back in the late '60's the 270 duration (224@.050), 470 lift cams were known as "stump pullers". Awsome truck power. And they still have plenty of top end.
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Clif '68 C/10 LWB, 327, TH400, 12 bolt |
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#3 |
Senior Moment
![]() Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,139
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Re: Comp Xtreme 4x4 Cam
Beware : Comp cams CAN be noisy. I personaly will NOT use Comp Cr@p
I will be installing a Lunati Voodoo in a week or so in my BB. I'll let you know how it works
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
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#4 |
Junior Member
Join Date: Apr 2006
Location: Eufaula, OK
Posts: 103
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Re: Comp Xtreme 4x4 Cam
Yes, the magnum series solid cams are very noisy, I had a Comp .525 lift solid cam in my '78 malibu and all you could here was the lifters rattling when it was running. The hydraulic cam I'm using in my truck now is quite, no lifter noise at all, just the full roller rockers I'm running are a little louder than I thought they'd be.
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Clif '68 C/10 LWB, 327, TH400, 12 bolt |
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#5 |
Registered User
Join Date: Jan 2004
Location: Olympia, WA
Posts: 231
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Re: Comp Xtreme 4x4 Cam
I am running Comp Cams Xtreme Energy X4254H, it's a nice mild cam with slight, noticeble idle. I am collecting parts to build a 400 and I'll go with the slightly biger version of that cam.
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72 Chevy C20 Longhorn 72 Chevy, K20 Custom Camper 67 Chevy, LWB, C20, 350/350, PS, PB, 65 Jag MKII |
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#6 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Comp Xtreme 4x4 Cam
Quote:
![]() The Xtreme 4X4 is a great low end torque cam. I have the CS X4 254H-11 in the 383 in my '69 Car Hauler. I replaced a factory 396 with this 383, and it pulls much better than the 396 ever did. I have pulled as much as 18,000# with this truck, and it does a great considering it is a small block. The cam a slight lope at cold idle, but pretty much sounds stock when it gets warm. It provides very good vacuum for my power brakes.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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