Author Topic: HP Manifold Heat Riser (Read 1631 times)

Claudia · « **on:** July 14, 2016 - 03:09:52 PM »

Looking for some advise on the heat riser in the big block HP manifold. Thinking about either tac welding it open or just removing it completely and welding up the two holes. Advantages or disadvantages? Any input is appreciated.

Chryco Psycho · « **Reply #1 on:** July 15, 2016 - 12:08:13 AM »

welding to cast really doesn;t work , I have just removed the plate from the cross shaft & left the cross shaft in place though

turbostang7 · « **Reply #2 on:** July 15, 2016 - 11:10:15 AM »

What about cutting it out, then drilling and tapping for a pipe plug?

Chryco Psycho · « **Reply #3 on:** July 15, 2016 - 12:55:14 PM »

can be done

Claudia · « **Reply #4 on:** July 19, 2016 - 10:16:45 AM »

I have already removed the heat riser so I think I am going to try to tap the holes and plug them.

YellowThumper · « **Reply #5 on:** July 19, 2016 - 07:36:07 PM »

Quote from: Claudia on July 19, 2016 - 10:16:45 AM

I have already removed the heat riser so I think I am going to try to tap the holes and plug them.

Agree with this route. Suggest to use a standard bolt thread and a set screw. Not a tapered pipe plug because of all the thermal cycling. After plug is installed try a small pin punch to slightly dimple the top thread so plug will not fall out.

Mike

Author Topic: HP Manifold Heat Riser (Read 1631 times)

Claudia

HP Manifold Heat Riser

Chryco Psycho

Re: HP Manifold Heat Riser

turbostang7

Re: HP Manifold Heat Riser

Chryco Psycho

Re: HP Manifold Heat Riser

Claudia

Re: HP Manifold Heat Riser

YellowThumper

Re: HP Manifold Heat Riser