TPI base to Heads mismatch
Thread Starter
8th Gear
Joined: Sep 2006
Posts: 8
Likes: 0
TPI base to Heads mismatch
I am assembling my top end of my new motor and I ran into a huge problem. The stock TPI does not have enough material around the center two intake runners to provide enough area to cover my 180cc intake runners on my Dart Pro1 heads.
Has anyone ran into this problem?
Do the aftermarket base manifolds have larger runners or provide more area around the runner to proper seal? My only other option is to weld material and then have the manifold surfaced which is not what I want to do.
Any help would be great! I am now stuck on this project.
Has anyone ran into this problem?
Do the aftermarket base manifolds have larger runners or provide more area around the runner to proper seal? My only other option is to weld material and then have the manifold surfaced which is not what I want to do.
Any help would be great! I am now stuck on this project.
Drifting
Joined: Apr 2003
Posts: 1,379
Likes: 4
From: rome ny
your stock tpi base will have smaller intake ports and will not line up perfectly. you should be able to use a felpro 1204 gasket and it should be ok.
i hate to see you use a stock base with those heads, it will hurt perfomance considerably.
do you have any pictures.
what part seem to be the problem exactly. im not sure i follow 100%.
i hate to see you use a stock base with those heads, it will hurt perfomance considerably.
do you have any pictures.
what part seem to be the problem exactly. im not sure i follow 100%.
Le Mans Master
Joined: Jul 2004
Posts: 7,163
Likes: 61
From: NH
St. Jude Donor '14
Originally Posted by mrrilla
I couldn't figure out a better way to post a picture other than in my photo album. Please check it out and give me your thoughts.
Thread Starter
8th Gear
Joined: Sep 2006
Posts: 8
Likes: 0
Thread Starter
8th Gear
Joined: Sep 2006
Posts: 8
Likes: 0
More pictures are posted at http://dreller.photosite.com/
Would Fel-Pro #1205 work better than my Mr.Gasket intake gaskets? Would an Edelbrock base provide more material around the intake runner to properly seal? It appears to me that I could have a leak hear.
Would Fel-Pro #1205 work better than my Mr.Gasket intake gaskets? Would an Edelbrock base provide more material around the intake runner to properly seal? It appears to me that I could have a leak hear.
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Drifting
Joined: Apr 2003
Posts: 1,379
Likes: 4
From: rome ny
Originally Posted by cuisinartvette
A 1205 is pretty big for the stock base, try the 1204. Dont know if the Eddy piece can be opened up to match a 1205?
Thread Starter
8th Gear
Joined: Sep 2006
Posts: 8
Likes: 0
Ok I will try another the 1204 gasket but I am still concerned that there isn't enough area left on the stock base to make good contact with the heads. The second picture I have posted in my pictures "mismatch outline" shows the stock base and the outline of the intake runners on the head. There isn't much room left on bottom side.....which is really the top of the manifold since the picture was taken upside down.
Drifting
Joined: Apr 2003
Posts: 1,379
Likes: 4
From: rome ny
Originally Posted by mrrilla
I just picked up an edelbrock base, we'll see if that solves the problem in a few days when I get it.
Thanks for everyones help!
Thanks for everyones help!
i think the port dimensions are 1.25x1.98 .
your darts are 1.12 x 1.91 should be ok. dart says you must use 1204 gasket.
