Roller - Rockers

  
Post technical questions and answers about your ride.

Moderators: tpirocz, Aron213, zroc, 87350tpi


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Sat May 18, 2002 7:15 am

What do you guys think about these?
Proform-3/8 " -1.5 ratio made for center bolts. $169.
Image
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7

User avatar
Ski89Z28
Board Admin
Board Admin
 
Posts: 2416
Joined: Sat Apr 14, 2001 8:30 pm
Location: Croydon, PA

Postby Ski89Z28 » Sat May 18, 2002 8:15 am

Dam!
I wish I new about them before I did mine with those gold ones for $300!

Good Deal!!! :thumbsup:

Where did you get them from??
89 IROC 350  *Last Years Time* 13.87 @ 98.90mph (with 2.77 gears!)


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Sat May 18, 2002 9:53 am

I actually have'nt got em yet.Just looking for some feedback on the PROFORM brand.Should of been more specific.....sorry.
Their on E-BAY with a "buy it now" price of $169, and a flat shipping charge of $17.50.Florida add another 6%.Your choice 1.5 or 1.6.
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7


Gearhead
Senior Member
Senior Member
 
Posts: 395
Joined: Thu Feb 28, 2002 2:41 am
Location: Mooresville Indiana

Postby Gearhead » Sat May 18, 2002 10:31 am

They need to be self aligning....are they ????

If they are and the manufacturer is a reliable then it is a damn sight better than the $249 best price I've been able to find.....
Black 87 IROC-Z
Black 98 Camaro SS, M6
78 T/A Pro Street tubber
01 Dodge Ram Sport Off Road

User avatar
8T8IROC
IROCZONE Team
IROCZONE Team
 
Posts: 1405
Joined: Tue Mar 05, 2002 5:23 pm
Location: Rancho Cucamonga, CA USA :D

Postby 8T8IROC » Sat May 18, 2002 12:15 pm

Crane Cams Blazer Aluminum Roller Rockers are about $170 from Jeg's I had purchased a set for my IROC's rebuild but they won't clear in the GM Performance Centerbolt Valve covers I bought so I swapped them for Crane Roller Tip Steel Rockers, I just didn't want to step down from 1.6 to 1.5 to have them clear  :cool:
Randy
1988 IROC-Z
1997 Anniversary Edition SS
1992 Heritage Edition RS Convertible
1976 Dodge Power Wagong The Pork Chop Express


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Tue May 21, 2002 3:56 am

They are self-aligning and you can pick from either 1.5 or 1.6.
                            Later
                               :)
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7


Gearhead
Senior Member
Senior Member
 
Posts: 395
Joined: Thu Feb 28, 2002 2:41 am
Location: Mooresville Indiana

Postby Gearhead » Tue May 21, 2002 12:00 pm

So far that is the best price then.....What retailers are they available at ?     I know you found them on e-bay but a regular retailer is our best bet for availability.
Black 87 IROC-Z
Black 98 Camaro SS, M6
78 T/A Pro Street tubber
01 Dodge Ram Sport Off Road


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Tue May 21, 2002 3:47 pm

See if this site PROFORM helps any.
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7


104-1014909267
 

Postby 104-1014909267 » Tue May 21, 2002 9:46 pm

Will Most 1.6 rollers fit under the original valve covers?


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Wed May 22, 2002 6:27 am

hortospe4x4 wrote:Will Most 1.6 rollers fit under the original valve covers?

I'm not sure on that one.
I've heard though to be on the safe side when using 1.6 ratio rockers is to install screw in studs.I don't have any personal experience with that,just what I've heard.
Maybe someone else knows more about it.
                             Later
                               :)
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7

User avatar
mnorton
Senior Member
Senior Member
 
Posts: 226
Joined: Wed Mar 06, 2002 12:37 pm

Postby mnorton » Wed May 22, 2002 11:59 am

To 8T8IROC,
Did you have to go to a longer push rod with those 1.6 rockers? If so how did you know what length to use? And you say they do clear "stock" center bolt valve covers? Also, what kind of difference did they make? Is the car still as "streetable"?
Mark

1987 "20th Anniversary Commemorative Edition" Z28 IROC Convertible.
305 TPI w/5 Speed & 3.45 posi.
http://images.cardomain.com/installs/226000-226999/226247_2_full.jpg

User avatar
8T8IROC
IROCZONE Team
IROCZONE Team
 
Posts: 1405
Joined: Tue Mar 05, 2002 5:23 pm
Location: Rancho Cucamonga, CA USA :D

Postby 8T8IROC » Wed May 22, 2002 4:30 pm

mnorton wrote:To 8T8IROC,
Did you have to go to a longer push rod with those 1.6 rockers? If so how did you know what length to use? And you say they do clear "stock" center bolt valve covers? Also, what kind of difference did they make? Is the car still as "streetable"?

Yeah the car is still totally streetable. The pushrod length is going to depend on your cam. At first I decided to go with a Crane CompuCam and then I swapped to an LT4 Hot Cam, each cam needed a different length of pushrod. I don't have the exact number for HP but I know on the cam with 1.5 the int/exh are like 485/485 and with 1.6 its 525/525. So it makes quite a difference in getting "more" from the cam  ;)
Randy
1988 IROC-Z
1997 Anniversary Edition SS
1992 Heritage Edition RS Convertible
1976 Dodge Power Wagong The Pork Chop Express

User avatar
mnorton
Senior Member
Senior Member
 
Posts: 226
Joined: Wed Mar 06, 2002 12:37 pm

Postby mnorton » Wed May 22, 2002 4:38 pm

Can I just bolt the 1.6 steel roller tip rockers onto stock heads with a stock cam? Will I need different pushrods? Will the rockers still clear the stock center bolt valve covers? Will I need new valve springs?

My valve covers need new gaskets, and I figure why not go to 1.6 rockers while they're off the car?
Mark

1987 "20th Anniversary Commemorative Edition" Z28 IROC Convertible.
305 TPI w/5 Speed & 3.45 posi.
http://images.cardomain.com/installs/226000-226999/226247_2_full.jpg

User avatar
8T8IROC
IROCZONE Team
IROCZONE Team
 
Posts: 1405
Joined: Tue Mar 05, 2002 5:23 pm
Location: Rancho Cucamonga, CA USA :D

Postby 8T8IROC » Wed May 22, 2002 4:45 pm

You can just bolt them on, but of course the question is if your willing to tear into the car a bit more why not change more of the valvetrain? I have heard and read that many people recommend replacing the valve springs when you change cams/rockers, but is usually because they are all done at the same time. I also don't know if there are additonal considerations to keep in mind since you are planning on reusing quite a bit of the stock parts. I would recommend holding off until you also purchase a cam, and then do pretty much and entire top end rebuild of valvetrain  :thumbsup:
Randy
1988 IROC-Z
1997 Anniversary Edition SS
1992 Heritage Edition RS Convertible
1976 Dodge Power Wagong The Pork Chop Express

User avatar
mnorton
Senior Member
Senior Member
 
Posts: 226
Joined: Wed Mar 06, 2002 12:37 pm

Postby mnorton » Wed May 22, 2002 4:57 pm

Randy,
I hear ya, and I keep going back and forth about that... My engine has 140K on it so if I start to tear into it I may as well build the whole thing. I would go with several upgraded parts, some head and port work too. That's a lot of coin... and a lot of work. Basically the car runs well, it doesn't blow smoke, but it would be nice to have a few more horses under the hood. Eventually I will build it, but for now I'd like to drive it. I'm spending a lot of coin getting new upholstery now, that should be done in a couple of weeks! I want to keep the outside appearence of the engine stock while upgrading the parts inside it.
Mark

1987 "20th Anniversary Commemorative Edition" Z28 IROC Convertible.
305 TPI w/5 Speed & 3.45 posi.
http://images.cardomain.com/installs/226000-226999/226247_2_full.jpg

User avatar
8T8IROC
IROCZONE Team
IROCZONE Team
 
Posts: 1405
Joined: Tue Mar 05, 2002 5:23 pm
Location: Rancho Cucamonga, CA USA :D

Postby 8T8IROC » Wed May 22, 2002 5:49 pm

mnorton wrote:Randy,
I hear ya, and I keep going back and forth about that... My engine has 140K on it so if I start to tear into it I may as well build the whole thing. I would go with several upgraded parts, some head and port work too. That's a lot of coin... and a lot of work. Basically the car runs well, it doesn't blow smoke, but it would be nice to have a few more horses under the hood. Eventually I will build it, but for now I'd like to drive it. I'm spending a lot of coin getting new upholstery now, that should be done in a couple of weeks! I want to keep the outside appearence of the engine stock while upgrading the parts inside it.

I completely understand your dilema, all I can tell you is there is nothing going to be a good time to be without your Camaro  :D What I mean is that it's difficult to tear into it and not be able to drive it, I would see if you can rebuild the entire motor if you believe that its about time for a rebuild. If not then do what you can and see if your happy with the results  :hehe:
Randy
1988 IROC-Z
1997 Anniversary Edition SS
1992 Heritage Edition RS Convertible
1976 Dodge Power Wagong The Pork Chop Express


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Mon Jun 17, 2002 2:05 am

irocz28 wrote:What do you guys think about these?
Proform-3/8 " -1.5 ratio made for center bolts. $169.
Image

I just installed these today.No problems,work fine.Their a good deal if your thinking of getting some. :thumbsup:
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7


104-1014909267
 

Postby 104-1014909267 » Mon Jun 17, 2002 10:48 pm

Was there an obvious gain in HP?

User avatar
IROC_L98
The Pet Canadian
The Pet Canadian
 
Posts: 13828
Joined: Tue Feb 26, 2002 9:49 pm
Location: Oakville, Ontario, Canada

Postby IROC_L98 » Mon Jun 17, 2002 11:35 pm

DUMB QUESTION ALERT

what is in the 350 stock?
Black 1990 IROC-Z
Smellyfella: i do fudge facts....i'm a republican...
ImageImage
"Canada is like a loft apartment over a really great party."


Gearhead
Senior Member
Senior Member
 
Posts: 395
Joined: Thu Feb 28, 2002 2:41 am
Location: Mooresville Indiana

Postby Gearhead » Tue Jun 18, 2002 12:10 am

Stamped steel self aligning 1.5 non roller. ;)

I might add...the stock rockers have an actual ratio of between 1.2 and 1.5 with all variations possible on one motor.
Black 87 IROC-Z
Black 98 Camaro SS, M6
78 T/A Pro Street tubber
01 Dodge Ram Sport Off Road


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Tue Jun 18, 2002 4:41 am

hortospe4x4 wrote:Was there an obvious gain in HP?

No noticeable power gain,maybe a little better throttle response.
Installed mainly because the stock rockers have inconsistant ratios.
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7

User avatar
Allan
Site Admin
Site Admin
 
Posts: 15294
Joined: Wed Apr 11, 2001 5:54 pm
Location: Miami, FL

2003 Dodge Ram

Postby Allan » Tue Jun 18, 2002 2:09 pm

Okay, just to be certain, our studs (stock) are 3/8" right?

Friend of my handed me a box of CRANE roller rockers and said he couldn't use them.  Well, turns out, I can't use them either since they are for BB Chevy.  They are 7/16" 1.7 ratio rockers.  He has a BB Chevy, but I have no idea what heads he has on it as the rockers are "too big?"

Anyway, looking at getting some rockers as well.  Maybe sell these and use the money for ones I can use.  :)
Zerks are good.


irocz28
Elite Member
Elite Member
 
Posts: 879
Joined: Tue Aug 14, 2001 1:06 am
Location: Eugene,OR

Postby irocz28 » Wed Jun 19, 2002 4:26 am

Stick them on Ebay if you don't know anyone that can you them.
KERRY
TUNED PORT INJECTION
          RULES!
           89 5.7


Return to Technical Discussions



Who is online

Users browsing this forum: Bing [Bot], Google [Bot] and 4 guests