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Comp Rockers or Crane Rockers #186465 01/07/09 09:08 AM 01/07/09 09:08 AM
Joined: Jan 2003 Posts: 4,281 Danville, NH M Mopar_Mike OP master
Mopar_Mike OP master M Joined: Jan 2003 Posts: 4,281 Danville, NH	I would like to upgrade my stock rockers from my 440 to an adjustable roller rocker. I have a smaller .480 lift cam, so I am going to use a 1.6 ratio. I have heard Crane rockers are the best for the buck vs. cheap ones that will just break or expensive ones that I do not need. How about Comp rockers though? Do they have the same quality as Crane? or.. Thanks. RS23L7 4-Speed

Re: Comp Rockers or Crane Rockers [Re: Mopar_Mike] #186466 01/07/09 09:17 AM 01/07/09 09:17 AM
A Anonymous Unregistered
Anonymous Unregistered A	The crane units are fine on small cams up to .620..I have not used the comps...I would buy Harland Sharp rockers if it was mee.. They will work on bigger cams if you ever decide to upgrade.. poppaj 4929496-wdg12.jpg (118 downloads)

Re: Comp Rockers or Crane Rockers #186467 01/07/09 11:55 AM 01/07/09 11:55 AM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: The crane units are fine on small cams up to .620..I have not used the comps...I would buy Harland Sharp rockers if it was mee.. They will work on bigger cams if you ever decide to upgrade.. poppaj i have to agree. in most cases the Harland Sharp rockers arent that much more money and you'll have somthing that will handle just about anything you can throw at them. if you need pricing, please contact me.

Re: Comp Rockers or Crane Rockers [Re: Mopar_Mike] #186468 01/07/09 12:05 PM 01/07/09 12:05 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: I would like to upgrade my stock rockers from my 440 to an adjustable roller rocker. I have a smaller .480 lift cam, so I am going to use a 1.6 ratio. I have heard Crane rockers are the best for the buck vs. cheap ones that will just break or expensive ones that I do not need. How about Comp rockers though? Do they have the same quality as Crane? or.. Thanks. For that cam why spend the extra $$ for a roller cam. They will provide no power gain over a good doctile rocker giving a slightly closer ratio. The gain recieved by using a roller in large cams come from helping to prevent side loading. Here is a quote from Dulcich on the subject. 4929756-roller.jpg (120 downloads) Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't fix it, if it Works!

Re: Comp Rockers or Crane Rockers [Re: Mopar_Mike] #186469 01/07/09 12:18 PM 01/07/09 12:18 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Comp's Pro Magnum rockers are available only in 1.5s. The Cranes will work OK in the 1.6, but you'll need to check closely for enough pushrod-to-cylinder head clearance through the full range of lift. Also, if you're still using unmodified OEM heads, make sure you have enough clearance between the top of the guide / valve seal and the bottom of the retainer at max lift w/ the higher ratio. IIRC, .500"-ish is about the point where OEM guides that haven't been cut down can be an issue.

Re: Comp Rockers or Crane Rockers #186470 01/07/09 12:18 PM 01/07/09 12:18 PM
Joined: May 2007 Posts: 47 North Branch, MI, USA notchbackcuda member
notchbackcuda member Joined: May 2007 Posts: 47 North Branch, MI, USA	Quote: The crane units are fine on small cams up to .620..I have not used the comps...I would buy Harland Sharp rockers if it was mee.. They will work on bigger cams if you ever decide to upgrade.. poppaj OK, I'm curious why the Crane's are limited to .620 lift?

Re: Comp Rockers or Crane Rockers [Re: MoparforLife] #186471 01/07/09 12:25 PM 01/07/09 12:25 PM
Joined: Apr 2007 Posts: 807 Toronto, Canada D dirtybee super stock
dirtybee super stock D Joined: Apr 2007 Posts: 807 Toronto, Canada	i got the comp pro magnums and i'm real happy with them. they don't come in a 1.6 ratio though but the cup style adjuster is nice, it enabled me to keep my pushrods. then i was able to step up to a solid cam later. don't know how much harlands are but i thought the $500ish i spent on the comps was a big chunk of change.

Re: Comp Rockers or Crane Rockers [Re: notchbackcuda] #186472 01/07/09 01:07 PM 01/07/09 01:07 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Quote: The crane units are fine on small cams up to .620..I have not used the comps...I would buy Harland Sharp rockers if it was mee.. They will work on bigger cams if you ever decide to upgrade.. poppaj OK, I'm curious why the Crane's are limited to .620 lift? because as the lift increases, so does the need for a heavier spring. the cranes will only handle just so much pressure.

Re: Comp Rockers or Crane Rockers [Re: Mopar_Mike] #186473 01/07/09 01:10 PM 01/07/09 01:10 PM
Joined: Jan 2003 Posts: 17,836 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,836 S.E. Michigan	I'm happy with the Comp steel rockers but they're 1.5 only, and the shafts are on intergalactic backorder so if you decide to get them, it's probably going to be awhile. For a .480 lift cam I'd probably just dig up an old set of Isky iron rockers, cut them all to the same width (because out of the box the width dimensions are all over the place), and would just run them instead. That way you get the advantages of adjustability for a couple hundred bucks, instead of 5 hundred. Rich H. Esse Quam Videri

Re: Comp Rockers or Crane Rockers [Re: ZIPPY] #186474 01/07/09 01:17 PM 01/07/09 01:17 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Are there any ductile rockers in the 1.6 ratio(I didnt think there was but I dont know BB stuff). Because he wanted 1.6 ratio

Re: Comp Rockers or Crane Rockers [Re: MR_P_BODY] #186475 01/07/09 01:36 PM 01/07/09 01:36 PM
Joined: Jan 2003 Posts: 17,836 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,836 S.E. Michigan	Yes there are Mike, Crane 64771-16. They would probably work perfect but I have never used them...just the old Isky stuff they no longer make.

Re: Comp Rockers or Crane Rockers [Re: ZIPPY] #186476 01/07/09 04:14 PM 01/07/09 04:14 PM
Joined: Jan 2003 Posts: 4,281 Danville, NH M Mopar_Mike OP master
Mopar_Mike OP master M Joined: Jan 2003 Posts: 4,281 Danville, NH	I have seen the Crane, and in fact have some 1.5 Golds, but not on the engine. I thought my .480 lift cam would benefit with a 1.6 giving a .512 lift. I also saw some Comp rockers (similar to the Crane, not the iron ductile style) on ebay that are 1.6 and about $100 cheaper than a new set of 1.6 Crane, but was worried about durability. I have edelbrock RPM 84cc heads and valves etc. but already know the 1.6 will work with my geometry. Last edited by Mopar_Mike; 01/07/09 04:16 PM. RS23L7 4-Speed

Re: Comp Rockers or Crane Rockers [Re: Mopar_Mike] #186477 01/07/09 04:44 PM 01/07/09 04:44 PM
Joined: Jan 2003 Posts: 1,807 Mopar Country, Mi ccdave The Ultimate
ccdave The Ultimate Joined: Jan 2003 Posts: 1,807 Mopar Country, Mi	Comp 928 dual springs, 540 lift, 6000 hard miles and no problems

Re: Comp Rockers or Crane Rockers [Re: ccdave] #186478 01/07/09 05:33 PM 01/07/09 05:33 PM
A Anonymous Unregistered
Anonymous Unregistered A	The Cranes will only handle so much spring pressure and lift. They are clearanced fit to shaft..No needle bearings at shaft..Aluminium fatigue easy when riding bare against steel shafts with high spring pressure...Where Harland Sharps have needle bearings to ride on at the shaft..Also the crane units will have a clearance problem on larger diameter springs, they will hit the outside edge of the retainer on the bottom side... poppaj

Re: Comp Rockers or Crane Rockers #186479 01/07/09 07:36 PM 01/07/09 07:36 PM
Joined: May 2007 Posts: 64 Airville Pa. B boomer member
boomer member B Joined: May 2007 Posts: 64 Airville Pa.	Quote: No needle bearings at shaft..Aluminium fatigue easy when riding bare against steel shafts with high spring pressure... poppaj I am pretty sure the crane roller rockers are bushed........

Re: Comp Rockers or Crane Rockers [Re: ZIPPY] #186480 01/07/09 08:03 PM 01/07/09 08:03 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Yes there are Mike, Crane 64771-16. They would probably work perfect but I have never used them... I have, and in a similar application (a small hydraulic street cam). They worked fine.

Re: Comp Rockers or Crane Rockers [Re: Mopar_Mike] #186481 01/07/09 08:04 PM 01/07/09 08:04 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: ... I also saw some Comp rockers (similar to the Crane, not the iron ductile style) on ebay that are 1.6 and about $100 cheaper than a new set of 1.6 Crane, but was worried about durability. If they're what I think you're talking about... !

Re: Comp Rockers or Crane Rockers [Re: boomer] #186482 01/07/09 08:11 PM 01/07/09 08:11 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Quote: No needle bearings at shaft... I am pretty sure the crane roller rockers are bushed........ I don't see any bushings...

Re: Comp Rockers or Crane Rockers [Re: BradH] #186483 01/07/09 08:19 PM 01/07/09 08:19 PM
Joined: Feb 2007 Posts: 5,080 organ M maximum entropy master
maximum entropy master M Joined: Feb 2007 Posts: 5,080 organ	the cranes are definitely not bushed. mine have been very reliable. for what is the good life if not doing things thoughtfully?

Re: Comp Rockers or Crane Rockers [Re: maximum entropy] #186484 01/07/09 08:36 PM 01/07/09 08:36 PM
Joined: Jan 2003 Posts: 6,531 Jacksonville, FL Chris2581 master
Chris2581 master Joined: Jan 2003 Posts: 6,531 Jacksonville, FL	Quote: the cranes are definitely not bushed. mine have been very reliable. Same here,I've had no problems at all with my Crane gold rockers. Nautilus Racing- We use Superformance gaskets and Turbo Action converters/products.

Re: Comp Rockers or Crane Rockers [Re: ZIPPY] #186485 01/07/09 08:41 PM 01/07/09 08:41 PM
Joined: Mar 2008 Posts: 44 pa F FOXY312 member
FOXY312 member F Joined: Mar 2008 Posts: 44 pa	CAN YOU TELL ME THE PUSH RODS THAT YOU ARE USING FOR THESE COMP ROCKERS I JUST GOT A SET AND BEEN WAITING TO BREAK MOTOR IN

Re: Comp Rockers or Crane Rockers [Re: FOXY312] #186486 01/07/09 09:03 PM 01/07/09 09:03 PM
Joined: Jan 2003 Posts: 177 J JCFcuda member
JCFcuda member J Joined: Jan 2003 Posts: 177	I've run cranes for 5 years, Drag only .680 lift roller , no problems so far. My friend changed from this cam. to one with a little more duration and lift. 690 ? and he pealed a few off the shaft. He went to T&D s. The cranes are a good rocker for the price. Jim

Re: Comp Rockers or Crane Rockers [Re: JCFcuda] #186487 01/07/09 09:29 PM 01/07/09 09:29 PM
Joined: Feb 2008 Posts: 102 Niagara, Ontario Canada M mrpatel member
mrpatel member M Joined: Feb 2008 Posts: 102 Niagara, Ontario Canada	I'm using 1.5 Crane Golds with a solid 631 roller and 84cc Eddy heads on my 511.

Re: Comp Rockers or Crane Rockers [Re: mrpatel] #186488 01/08/09 12:54 AM 01/08/09 12:54 AM
Joined: Feb 2004 Posts: 391 Santa Rosa,CA USA 67dodgeracer enthusiast
67dodgeracer enthusiast Joined: Feb 2004 Posts: 391 Santa Rosa,CA USA	I dont know how many passes are on my crane golds.Over 600 easy. .640 lift roller.

Re: Comp Rockers or Crane Rockers [Re: 67dodgeracer] #186489 01/08/09 02:21 AM 01/08/09 02:21 AM
A Anonymous Unregistered
Anonymous Unregistered A	Anyone tried the PRW rockers ? Just wondering I have used and sold some of the ferd and chevy rockers and none have come back JW

Re: Comp Rockers or Crane Rockers [Re: FOXY312] #186490 01/08/09 10:45 AM 01/08/09 10:45 AM
Joined: Jan 2003 Posts: 17,836 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,836 S.E. Michigan	Quote: CAN YOU TELL ME THE PUSH RODS THAT YOU ARE USING FOR THESE COMP ROCKERS I JUST GOT A SET AND BEEN WAITING TO BREAK MOTOR IN Sure, they're 8.550 long, 5/16, .080 wall, one piece pushrods made by CV products and purchased from Porter Racing Heads. Rich H. Esse Quam Videri

Re: Comp Rockers or Crane Rockers [Re: 67dodgeracer] #186491 01/09/09 07:54 PM 01/09/09 07:54 PM
Joined: Jan 2003 Posts: 338 Montreal Quebec STROKIE enthusiast
STROKIE enthusiast Joined: Jan 2003 Posts: 338 Montreal Quebec	Crane Cams introduce its first aluminun rocker arm to the performance industry in 1964... Since that time they produced more than one and a half million Crane aluminun rocker arm. This statement was in 1986. Today can be 2 millions. I think they proved their reliability... I used it since 20 years no problems

Re: Comp Rockers or Crane Rockers [Re: STROKIE] #186492 01/09/09 07:56 PM 01/09/09 07:56 PM
Joined: Jan 2003 Posts: 6,266 Renton Washington T Triple Threat master
Triple Threat master T Joined: Jan 2003 Posts: 6,266 Renton Washington	Anybody ever used any of the chinese rockers with good results? -Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA

Re: Comp Rockers or Crane Rockers [Re: Triple Threat] #186493 01/09/09 08:26 PM 01/09/09 08:26 PM
Joined: Feb 2007 Posts: 5,080 organ M maximum entropy master
maximum entropy master M Joined: Feb 2007 Posts: 5,080 organ	i used a set a while back. when 440 source first came out wittem. they were my customer's idea, and his engine so i used 'em under slight protest. they've got about two years of service on 'em with a mild flat tappet solid cam, aboot .600 lift, no probs yet. the shafts were filled with polishing compound, and i had to pull the plugs and clean them. what a mess! for what is the good life if not doing things thoughtfully?

Re: Comp Rockers or Crane Rockers #186494 01/11/09 08:33 PM 01/11/09 08:33 PM
Joined: May 2006 Posts: 236 Southern CA Colin Frolick enthusiast
Colin Frolick enthusiast Joined: May 2006 Posts: 236 Southern CA	I just got a set of the PRW 1.6 iron rockers for a 496, they look nice! they're also available in 1.5 and 1.7 ratios, i was surprised to see that. their website has them listed for $399, when i called the rep told me the price was now $450 but he'd honor the web price, i thought that was damn decent. and just a few days ago i was installing them and broke one of the cup adjusters, a phone call and they're sending me some more for free. people on the pontiac forum have used prw rockers and like the brand so far.

Re: Comp Rockers or Crane Rockers [Re: Colin Frolick] #186495 01/11/09 08:38 PM 01/11/09 08:38 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer master
Bob_Coomer master Joined: Nov 2003 Posts: 6,293 Rock Springs	Sometimes you can find Indy/Dove SR rockers pretty cheap in the race section...Seems I recall a used set of there...They can usually be had in the $300-$400 range. And work pretty well with about any typical "Big" solid flat tappet cams. There was a set in the classifieds, but cant recall the details, or even if they were SR style... Just a thought. [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

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