Holley Carb Question

Chad Rhodes · 10-03-2007, 10:10 PM

is it possible to helicoil the threads in the squirter hole, and what size are said threads?

FED 387 · 10-03-2007, 10:55 PM

The thread size is a 12-28 NF ----not sure if a helicoil is made in that size OR if you do drill it out if there will be enough material left to screw in the helicoil---Comp 387

Myron Piatek · 10-04-2007, 06:38 AM

It was a long time ago and I forgot what thread insert I actually used. It wasn't the correct one, but it was close. The screw was forced on and I had to use the hollow version because the insert basically blocked the original passages along the sides of the threads. Don't know if that's legal for class. But it got me by on my bracket car.

Mike Hedger · 10-04-2007, 08:39 AM

Heli coil does sell a kit this size. You can try the high flow squirter screw first they have a few more threads.

FED 387 · 10-04-2007, 09:43 PM

AHeli coil does sell a 12-24NC but no 12-28NF---you might try a 12-24 and then run a 12-28 tap thru it see if it works---not sure if there are passages in the side of where the bolt goes thru--you might try the tech dept at Holley or any reputable carb guy to get an answer--Comp 387

FED 387 · 10-04-2007, 09:50 PM

Try calling

Lavizzi Precision Products

999 Regency Dr

Glendale Hts., Il 60139

1-800-323-1772

They sell a 12-28 helicoil kit----Comp 387

RJ Sledge · 10-05-2007, 12:00 AM

Chad

I stripped the threads on the squirter, found a kit from Bo Laws web site and it worked great.

R J Sledge

Chad Rhodes · 10-05-2007, 05:46 PM

Quote:

Originally Posted by r sledge

Chad

I stripped the threads on the squirter, found a kit from Bo Laws web site and it worked great.

R J Sledge

wow there's a name from the past. Didn't know he was still around. I will check that out.

don R · 10-05-2007, 06:32 PM

I think they are now BLP

10-03-2007, 10:10 PM	#1
Chad Rhodes VIP Member Join Date: Jan 2005 Location: Where the Green Grass Grows, AL Posts: 2,375 Likes: 0 Liked 3 Times in 3 Posts	Holley Carb Question is it possible to helicoil the threads in the squirter hole, and what size are said threads? __________________ Chad Rhodes 2113 I/SA

10-03-2007, 10:55 PM	#2
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,400 Likes: 482 Liked 320 Times in 172 Posts	Re: Holley Carb Question The thread size is a 12-28 NF ----not sure if a helicoil is made in that size OR if you do drill it out if there will be enough material left to screw in the helicoil---Comp 387

10-04-2007, 06:38 AM	#3
Myron Piatek VIP Member Join Date: Nov 2001 Location: Florida Posts: 1,542 Likes: 34 Liked 138 Times in 51 Posts	Re: Holley Carb Question It was a long time ago and I forgot what thread insert I actually used. It wasn't the correct one, but it was close. The screw was forced on and I had to use the hollow version because the insert basically blocked the original passages along the sides of the threads. Don't know if that's legal for class. But it got me by on my bracket car. __________________ LOCOMOTION Racing

10-04-2007, 08:39 AM	#4
Mike Hedger Junior Member Join Date: Jul 2007 Location: Kemah TX Posts: 93 Likes: 0 Liked 1 Time in 1 Post	Re: Holley Carb Question Heli coil does sell a kit this size. You can try the high flow squirter screw first they have a few more threads. __________________ Mike Hedger S/C 4646 MPH Racing and Fabrication

10-04-2007, 09:43 PM	#5
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,400 Likes: 482 Liked 320 Times in 172 Posts	Re: Holley Carb Question AHeli coil does sell a 12-24NC but no 12-28NF---you might try a 12-24 and then run a 12-28 tap thru it see if it works---not sure if there are passages in the side of where the bolt goes thru--you might try the tech dept at Holley or any reputable carb guy to get an answer--Comp 387

10-04-2007, 09:50 PM	#6
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,400 Likes: 482 Liked 320 Times in 172 Posts	Re: Holley Carb Question Try calling Lavizzi Precision Products 999 Regency Dr Glendale Hts., Il 60139 1-800-323-1772 They sell a 12-28 helicoil kit----Comp 387

10-05-2007, 12:00 AM	#7
RJ Sledge Senior Member Join Date: Jun 2007 Posts: 783 Likes: 485 Liked 287 Times in 90 Posts	Re: Holley Carb Question Chad I stripped the threads on the squirter, found a kit from Bo Laws web site and it worked great. R J Sledge

10-05-2007, 06:32 PM	#9
don R Member Join Date: Dec 2005 Location: Illinois Posts: 109 Likes: 0 Liked 0 Times in 0 Posts	Re: Holley Carb Question I think they are now BLP