Roller rocker debate
I am finishing up my 489s. Cam is .547 .547 112lsa 230/236 with eq 320 heads. My debate is what rockers to go with. I am looking at comp pro magnums, harland diamonds, and scorpion marine. Also up in the air on 1.7 vs 1.8 or even a combo of both. Whats your take??
|
Go with the Comp Ultra Pro Magnum Rockers. They are better than aluminum rockers for the following reasons- Better fatigue resistance, rebuildable, lighter over the nose, less bulky, and I'm sure a few other good reasons. Also the price will be on par with the better aluminum rockers.
On my old engines I broke a Crane Gold and I didn't have that many hours on the rockers. My new engines have the Comp Stainless Steel rockers, which are no longer available. Either way after my experience with Golds and what I've discussed with a few guys, I'll never run aluminum rockers again! |
I have very little expertise on the matter, but after some research I went with the Comp Cams Ultra Pro Magnums. I'm just more comfortable with steel as all.
|
:food-smiley-007::food-smiley-007::food-smiley-007:
This is like asking if fords or Chevys are better. Whatever you decide, make sure the setup / geometry works out correctly. I'd bet that lots of valvetrain failures are due to poor setup as apposed to aluminum vs. Steel or brand vs. Brand. |
Originally Posted by endeavour32
(Post 4516135)
Go with the Comp Ultra Pro Magnum Rockers. They are better than aluminum rockers for the following reasons- Better fatigue resistance, rebuildable, lighter over the nose, less bulky, and I'm sure a few other good reasons. Also the price will be on par with the better aluminum rockers.
On my old engines I broke a Crane Gold and I didn't have that many hours on the rockers. My new engines have the Comp Stainless Steel rockers, which are no longer available. Either way after my experience with Golds and what I've discussed with a few guys, I'll never run aluminum rockers again! What ever OP does just stay away from the import 125.00 set of rockers. I wouldn't recommend those to anyone. Amazing how many of those big hp engines you see on the net selling cheap use all those components though. Buyer looks at price and power. Not cool. OP your cam is on the small side but should help save your drive among other things. You propping for 5200-5400. |
Originally Posted by vintage chromoly
(Post 4516154)
:food-smiley-007::food-smiley-007::food-smiley-007:
This is like asking if fords or Chevys are better. Whatever you decide, make sure the setup / geometry works out correctly. I'd bet that lots of valvetrain failures are due to poor setup as apposed to aluminum vs. Steel or brand vs. Brand. |
Originally Posted by mggdoors
(Post 4516117)
I am finishing up my 489s. Cam is .547 .547 112lsa 230/236 with eq 320 heads. My debate is what rockers to go with. I am looking at comp pro magnums, harland diamonds, and scorpion marine. Also up in the air on 1.7 vs 1.8 or even a combo of both. Whats your take??
|
Originally Posted by endeavour32
(Post 4516135)
Go with the Comp Ultra Pro Magnum Rockers. They are better than aluminum rockers for the following reasons- Better fatigue resistance, rebuildable, lighter over the nose, less bulky, and I'm sure a few other good reasons. Also the price will be on par with the better aluminum rockers.
On my old engines I broke a Crane Gold and I didn't have that many hours on the rockers. My new engines have the Comp Stainless Steel rockers, which are no longer available. Either way after my experience with Golds and what I've discussed with a few guys, I'll never run aluminum rockers again! |
I was thinking comp ultras myself for reliability standpoint. I hear 1.8 causes more sideloading. Should i stay away from those or chase the power
|
Originally Posted by mggdoors
(Post 4516196)
I was thinking comp ultras myself for reliability standpoint. I hear 1.8 causes more sideloading. Should i stay away from those or chase the power
|
All times are GMT -5. The time now is 11:44 AM. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.