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View Full Version : Comp Composite gear and 351w question?


mrtbolt64
04-05-2006, 10:47 AM
Had a Hyd roller ground by Jay Allen, off the advise of I believe my engine builder he told me to get the Comp Composite gear for dist.

I bought one, and need to know how this thing will hold up in street driven and strip applications considering it has to drive the oil pump as well. It just seems a little cheesey to me. I called Comp this morning for a help and they were about worthless.

The gear measures about .5305 and the dist is .5315 and that is .001 of press but it just seems like this plastic gear needs more, like around .002.

Finally does anyone know what the measurement is from face of the gear to collar of dist. I know on a 302 it is 3.996 to 4.005 but not certain on a 351. Comp was worthless on this one as well and MSD did not list anything on there site.

Thanks in advance

Jay Allen
04-05-2006, 05:45 PM
Had a Hyd roller ground by Jay Allen, off the advise of I believe my engine builder he told me to get the Comp Composite gear for dist.

I bought one, and need to know how this thing will hold up in street driven and strip applications considering it has to drive the oil pump as well. It just seems a little cheesey to me. I called Comp this morning for a help and they were about worthless.

I personally do not like the composite gears. I do not recommend them at all. A steel gear or a bronze is what I do. I am a bronze nutt. I share the same feelings with you on the oil pump drive and such for an applications like yours. And your questions 302 vs 351, you are on the right track.

Hey that thing looked real nice! Let me know when its running!

Good Luck Chad.

mrtbolt64
04-05-2006, 05:53 PM
Thanks Jay

I think I will just bite the bullet and go with a bronz gear. Atleast I will get some money back, this thing was expensive.

Its gettin closer to finished, engine is basically done, just had a couple loose ends to tie up. Next month is paint, then get the B3S tuned.

396chevelle
04-05-2006, 06:09 PM
I have run one on a wet sump bbc for 2 seasons and can hardly see any wear. Approx 100 passes and a little street driving. I too was reluctant on running a plastic gear but it seems to be lasting fine.

Jay,
Why don't you like them? Have you had a bad experience with them?
Cary

Jay Allen
04-06-2006, 11:04 AM
Jay,
Why don't you like them? Have you had a bad experience with them?
Cary
There are a few things in racing that are absolutes. Like, less weight = faster acceleration. There is one. Then there are things that become opinions based off of conjecture or based off of experience. Rarely do I say something unless I have done it myself or have a good customer who's input I trust (those people are few, right Chris!). The cam gear thing is one that is NOT an absolute. It is based off experience or internet conjecture. I think it is awesome Cary that you have had an excellent experience. While some of my customers (and myself) had horrible experiences. Most of what you read on the internet is conjecture based off of false information or just plain stupidity. I have learned how to make bronze live for a long time. I put over 10K miles on a bronze gear last summer and it is ready for this year again. The cam gear is an item that if it works for you, GREAT. I am glad that you have had success. Thank you for sharing, seriously.

94guy
04-06-2006, 02:08 PM
jay you never told me who ported the 18x heads on the sbc 427?

396chevelle
04-06-2006, 02:45 PM
Jay,
I have a great deal of respect of your opinion. When I get a new cam you will probably get my business. With that being said, when you say don't use something that I use I got concerned.
Thanks
Cary

Jay Allen
04-07-2006, 10:43 AM
jay you never told me who ported the 18x heads on the sbc 427?
If I just blabbed everything, then there would be no use for me, now would there? I keep my head porters close to my side. A good cylinder head porter is very hard to find. F-A-R too many guys have a grinder and a flow bench and think they are head porters. Track results is what I am interested in. Not big CFM numbers. Not some talk about velocity on the bench. How does the end product perform at the track?

That is what counts.

Chris Uratchko
04-07-2006, 10:48 AM
Translation: Send him the heads. :D