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Jeep 4.0 hydralic roller and flat tapped cams

Posted: March 12th, 2009, 9:39 am
by 505performance
http://shop.505performance.com/product. ... ductId=178


Hydraulic roller cam jeep 4.0 stage one
1991-2006 jeep 4.0 hydraulic roller cam kit complete with custom ground roller cam comp hydraulic lifters comp 4340 push rods beehive springs 4140 retainers keepers and performance single roller timing set. Duration at .50 is 207int 216 exhaust .484 lift power range 1000rpm to 4800 rpm. 28 to 36 hp gain on stock jeep motors.



Stage 1 Cam 242/258 jeep hydraulic flat tapped 1000-4800
Stage 1 performance cam for jeep 242 or 258 or stroker motor 211int 213ex.485lift 114int centerline rpm 1000-4800 perfect for stock jeep retaining all emission controls very strong low end and midrange.Comes with performance lifters

* Item #: Stage 1 Cam 242/258 jeep

Re: Jeep 4.0 hydralic roller and flat tapped cams

Posted: March 13th, 2009, 9:12 am
by 505performance
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Re: Jeep 4.0 hydralic roller and flat tapped cams

Posted: March 17th, 2009, 2:26 pm
by 505performance
All our roller cams come from a hardened blank Rockwell 52 then hardened to 56 to 58 Rockwell .100 deep" factor chevy roller is about 56 Rockwell". in trial test we saw no wear after 2500 miles on the camshaft. Spring pressure can not exceed 120 on the seat and 325 open, expected life for the roller cams are 70,000 to 140,000 miles depending on driving conditions.The billet roller camshaft have a draw back and that is you must use a brass gear because it is a billet blank, so if you must use a brass gear plan on changing timming gears out every 1500 miles, we have four months of r&d on these camshaft and to the best of our knowledge the cast blanks should work perfect for every application in the hydraulic world, About 10 years ago you could order a hydraulic roller camshaft for a standard distributed gear{chevy only} and it was a cast camshaft just like 505 performance cam, and up till about 5 years ago you couldn't get a billet with a cast gear, know they make a removable rear cam main lobe and they press the cast cam gear in place, this is on a chevy motor, we don't have that option in a jeep do we since our drive gear is in the middle. Please advise that is why a cast blank may be our only option for long term divisibility

Re: Jeep 4.0 hydralic roller and flat tapped cams

Posted: March 16th, 2011, 2:44 am
by brotherwes
How's about running this special again sometime soon? Just got myself a 1999 XJ Sport 4.0L that could use some more power!
:stick: