Ok been working on the car for a decent amount of time, i finally got it started up and i have a massive vac leak cheacked it out and its coming from the runners to the plenum so i pulled apart looked at it and the damn plenum is stripped where the bolts are was thinking about helicoilin it or having it sleeved worth it or not worth it, only other option is either junkyard TPI or aftermarket base and runners and still gotta go get the plenum, any suggests would be helpful

 

Fill the hole with JB weld, drill and tap it. It will be stronger than the aluminum...

 

Helicoil it, it'll take 30 minutes to do and last forever.

 

Just make sure you get the new bolt hole drilled and tapped in the exact location and angle, otherwise you'll have a hard time bolt your runners to the plenum.

Or, you can just buy a ported plenum from TPIS.

 

Sorry, but whats a Helicoil?

 

A sprial wound stainless steel thread repair. You drill and tap the hole to the size specified on the package, use the little plastic tool and thread coil on it, then thread that into the hole..Viola! new threads, stronger than original. When dealing with alum. you should always use a stainless steel thread repair, if you use one of the plain steel inserts you will have problems from dissimilar metal corrosion.

 

thanks

 

I have an 85-88 Plenum that I will be putting 4 sale...I also have the bae so you can port this one out and leave your stock on the side...let me know if your interested, I don't want a lot of money

 

Can anyone give me exacts on how to do the helicoil i got the general idea how difficult can it be?

Also poncho how much for the plenum? can always use a spare

 

Its easy but expensive. Just need to drill out the hole, keep the tap in the right alignment (some of those bolts go in at funny angles to the surface) and then just insert the coil with the tool they provide.

 

Expensive? The kit costs about $20 and comes with everything needed except the drill bit, that will set you back maybe $3

 

how does $50.00 sound?

Not sure what it's worth.....I see ported ones sell for $100-$150 so for sure not that much.

Here is a pic

 

Last time I checked, the kit was alot more than $20.

 

Just bought one a couple months ago for my intake $22 at advance auto.

 

Poncho let me know if you can find shipping to Coventry, Rhode Island 02816 and let me know how much it is total

Priced helicoil kits most sizes 28$ plus tax and napa includes everything (inserts, tap, tool, drill bit) hopes that settles it

 

I can ship it via US Postal Service for $60.00 total...

 

I gt my drill and tap kits from a local bolt company, typically pay aroudn 15$. Even Autozone is cheaper at around 20 for the kit.