Anyone else have problems with Dorman LS2 intake?
Anyone else have problems with Dorman LS2 intake? 
Received two manifolds with this "defect". I still want one, just not a busted one. Unless this is OK?
They all look that way. Their outers (top, snout) are sonic welded to the upper and fast lower. The o-rings get smooshed in the process, but don't serve a purpose at this point because they're sonic welded on the outside of the manifold - remember, it isn't a 3 piece, but still uses the FAST lower that has the o-rings on it. Just an oddity of the dorman intakes. You can hit the o-rings porting the runners too, but it doesn't really matter.
Trending Topics
This rev J im porting looks good, but with so many processes going on, its no wonder the seal gets tangled etc.
Yes, the manifold is sonically welded so really no "need" for the seal in most places honestly. When im completely done, ill post all the pics in a thread. We transition the tb opening, open it up, then epoxy it to make a smoother transition and better flow there.
The intake def needs a professional touch.
Yes, the manifold is sonically welded so really no "need" for the seal in most places honestly. When im completely done, ill post all the pics in a thread. We transition the tb opening, open it up, then epoxy it to make a smoother transition and better flow there.
The intake def needs a professional touch.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Correct. It's just the nature of sonic welding their upper to a lower that was designed with orings, but doesn't end up using them in the application. Like in the ported pics above, they're simply ugly and don't effect anything.
Teching In
Joined: Mar 2016
Posts: 39
Likes: 2
From: Texas
I returned the first one I got through Amazon but it was because where the runners meet, the top and bottom were not smooth. The bottom piece was sticking out and filing it would have probably made a hole.
