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#1
08-23-2023, 06:48 PM
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Comp Cams Evolution Lifters
I am asking for a report from people who are using the new Comp Cams Evolution cartridge style hyd roller lifters.
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Tim Corcoran |
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#2
08-23-2023, 08:43 PM
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Just got mine but the engine is not that far along.I bought a couple Xtra cartridges for mine just incase
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#3
08-23-2023, 08:58 PM
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I recently used them in a 455HO '71 GTO and was impressed with them. The adjustment felt the same for all the lifters and they were very quiet from the initial start-up.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#4
08-23-2023, 09:00 PM
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I've used the older CC857 from around 2011 and they were fine and used the newer CC857 and had a nightmare with them.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#5
08-23-2023, 09:21 PM
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Quote:
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Tim Corcoran |
| The Following 2 Users Say Thank You to Tim Corcoran For This Useful Post: | ||
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#6
08-24-2023, 07:31 AM
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Just giving my experience with the previous CC857 lifters compared to my experience with the new Evolution lifters.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#7
08-25-2023, 01:21 AM
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Rather frustrating. The Evolution lifters have been out for quite awhile now but haven't seen reports on them - either good or bad.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
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#8
08-25-2023, 07:07 AM
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Quote:
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#9
08-25-2023, 07:19 AM
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If you haven't seen bad reports then I'd say your good to go because rarely will you see a good report on the internet, everyone is more quick to bash something it seems.
It would be such a small sample size on this forum anyway. I wouldn't be afraid to try them Tim. I'm using a set on the next build that's waiting for me after I finish the current build. |
| The Following User Says Thank You to Formulajones For This Useful Post: | ||
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#10
08-25-2023, 08:24 AM
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I've got about 30 minutes run time on a set, but just on the test stand. Have rather quiet mufflers to use with the stand, and no lifters noise so far. The motor is now in the car, and I've just started wiring the EFI system and have some other wiring to do. Hopefully have the car in the muffler shop within a couple of weeks, then can evaluate more thoroughly.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust |
| The Following User Says Thank You to Lee For This Useful Post: | ||
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#11
08-25-2023, 11:32 AM
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Lee I think Joe ordered a set for the cam you are doing for his RAIV headed motor. I'll still bet you a single pattern or reverse split would work better
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#12
08-25-2023, 06:19 PM
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Quote:
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Tim Corcoran |
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#13
08-25-2023, 09:35 PM
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Quote:
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
| The Following User Says Thank You to AG For This Useful Post: | ||
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#14
08-26-2023, 09:20 AM
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Evolutions have a dif part number.Butler has them on their site.Tom
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#15
08-27-2023, 12:04 AM
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Quote:
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Tim Corcoran |
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#16
08-27-2023, 08:49 AM
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I wouldn't hesitate to use them.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#17
08-27-2023, 04:21 PM
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I have Johnsons in there now and to my surprise they do make a little noise on occasion but seem to be getting better. I will see how things go if I am unhappy with them I may upgrade to the Evolution's.
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Tim Corcoran |
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#18
09-23-2023, 02:22 PM
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100 miles on the Evolutions that I mentioned above, so far so good.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust |
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#19
10-24-2023, 01:36 PM
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Quote:
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears (Traded) '69 LeMans Vert, 350, #47 heads: Non-running project |
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#20
10-24-2023, 05:49 PM
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The motor I used them in previously had Lunati HR lifters and the body height of the CC Evolution where the PR sits was lower so I remeasured PR length and had to get new ones.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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