Strokermjcomanche Posted November 27, 2021 Share Posted November 27, 2021 Looking for a performance camshaft that I don’t have to modify the seats on the head. Anyone have any options for me? Most of my options are not in stock because of shortages. 95 4.0 , now a 4.7 , 802sealed power pistons . I plan on running stock valvetrain if possible. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted November 27, 2021 Share Posted November 27, 2021 The camshaft should have nothing to do with modifying the seats. That’s just the valve springs that are used that may require a specific installed height or a narrower ID to accommodate for a thicker spring wire. There are several off the shelf options for aftermarket springs (see latest in-stock Mopar offerings at the bottom of this post). Good stock springs are good for about .44 lift on the cam with regular 1.6 rocker arms. I personally prefer the stock renix-95’ cam with some 1.7 roller rockers. The Mopar purple cams were nice too. Good vacuum and full width cam lobes instead of those little narrow ones found on most aftermarket cams. Comp just came out with some new 4.0 cams though also: https://www.compcams.com/xtreme-4x4-197-201-hydraulic-cam-for-jeep-40l-1964-98-cpg.html That cam is very similar to the original Mopar 229 cam. You could possibly get away with stock springs depending on the valve weight. If you do need valve spring for a higher lift and don’t want to machine the seats to use LS or comp springs than use these: https://www.summitracing.com/parts/DCC-P5249464 Link to comment Share on other sites More sharing options...
Eagle Posted November 27, 2021 Share Posted November 27, 2021 What kind of performance? Low end grunt power, or high RPM horsepower? Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted November 28, 2021 Author Share Posted November 28, 2021 On 11/26/2021 at 8:06 PM, ghetdjc320 said: The camshaft should have nothing to do with modifying the seats. That’s just the valve springs that are used that may require a specific installed height or a narrower ID to accommodate for a thicker spring wire. There are several off the shelf options for aftermarket springs (see latest in-stock Mopar offerings at the bottom of this post). Good stock springs are good for about .44 lift on the cam with regular 1.6 rocker arms. I personally prefer the stock renix-95’ cam with some 1.7 roller rockers. The Mopar purple cams were nice too. Good vacuum and full width cam lobes instead of those little narrow ones found on most aftermarket cams. Comp just came out with some new 4.0 cams though also: https://www.compcams.com/xtreme-4x4-197-201-hydraulic-cam-for-jeep-40l-1964-98-cpg.html That cam is very similar to the original Mopar 229 cam. You could possibly get away with stock springs depending on the valve weight. If you do need valve spring for a higher lift and don’t want to machine the seats to use LS or comp springs than use these: https://www.summitracing.com/parts/DCC-P5249464 If comp had that cam in stock that’s what I would have bought . I can get the comp springs that look like the mopar ones with the dampener springs, but the head supposedly needs machined which is strange because they look identical to the mopar springs. Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted November 28, 2021 Author Share Posted November 28, 2021 On 11/27/2021 at 12:43 AM, Eagle said: What kind of performance? Low end grunt power, or high RPM horsepower? I’d prefer low end grunt , to mimic my black truck . But I’d take a low to mid range as well Link to comment Share on other sites More sharing options...
Eagle Posted November 28, 2021 Share Posted November 28, 2021 25 minutes ago, Strokermjcomanche said: I’d prefer low end grunt , to mimic my black truck . But I’d take a low to mid range as well So you're looking for what is generally referred to as an "RV" cam rather than a "performance" cam. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted November 28, 2021 Share Posted November 28, 2021 59 minutes ago, Strokermjcomanche said: If comp had that cam in stock that’s what I would have bought . I can get the comp springs that look like the mopar ones with the dampener springs, but the head supposedly needs machined which is strange because they look identical to the mopar springs. i believe the comp springs have almost the same installed height but the spring itself is thicker so a narrower seat ID is required. The Mopar springs are drop in though. That comp cam hasn’t been released yet but should be soon. It’s not really the ideal low end cam your looking for though. @Eagle is right. You need more of an RV style cam Link to comment Share on other sites More sharing options...
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