65-66 guys with 351w swap... got a question

[ratio411]

What headers work best for this swap?
What are my choices for large tubes or step tubes?
Is anyone using Hooker pn:6208?
I like the specs on that header.

I am NOT interested in shortys, tri-y, or 1 1/2" primary headers. I would consider 1 5/8" tubes if they got rave reviews and larger tubes, like 6208, are shown to have problems with this swap.

Thanks!
Dave

 

[xoxbxfx]

just want to say, I have NEVER seen you ask a question. This is pretty amazing Wish I had an answer for you

 

[RajunCajun]

Im also in this boat in header selection for my 393 Ive talked to there techs over the phone a few times and they assured me it would fit long as you meet the specs they specified under footnotes on the other hand a uncoated set runs u around 400$ where as a coated runs in the 600s

Have you checked out Hedman?
They have Coated Swap headers part#(88666) for around 360$

 

[ratio411]

Not interested in coated tubes.
Overrated IMO.
Also, they say not to put coated tubes on a new engine until it is thoroughly broken in.

I have checked on Hedman. They have several LTs that fit this swap. I am disappointed that they only offer 1 1/2" and 1 5/8" tubes.
They have a step header also for this swap, but again, it is stepped 1 1/2" to 1 5/8"...

Any other comments?

 

[ratio411]

3t

 

[fastcoupe68]

I ran super comps on my 66 and the only thing I had a problem with was the z-bar I just made my own. I also remember hooker saying you had to use a 66 specific motor mount with these headers because clearance is obviously at least horrible

 

[ratio411]

That was the 6208 part number?
Super Comp swap headers with 1.75" primarys?

Thanks for the info!
Dave

 

[fastcoupe68]

Yes

 

[SadbutTrue]

My heddmans fit very nice and definitely made some extra topend pop, even with my limited power range (stock cam, performer intake). I imagine if I winded my engine out another 1000 rpms it would have been even more noticeable. Only complaint is there is a persistent exhaust leak, but usually the exhaust drowns that out anyway. Can't beat the price either.

 

[mr-fixit]

I have JBA headers on mine. Took a little dimpling to clear the lakewood bell housing, other then that, no problem. BUT, I bought them back in '89 before the price went through the roof.

 

[dodgestang]

Have you looked at Fordpowertrain.com ? They made the headers I used for my 351c swap and I think they are quite nice.

 

[meanroy]

re:headers

I used the Headman Shorties, they're specifically for the 351W-> '65-66 swap.

The shorties are nice because they dump right into a 3" collector so the tube size isn't too restrictive. I used a 3" pipe with Dr. GasX crossover.

You will find there is NOT a lot of space between the header and the shock tower! But I actually was able to drop in the engine with the headers installed. I also recommend header bolt locks because it's so hard to get them tight after they're installed.

I guarantee you won't have to worry about back-pressure with this setup!
I have to say though, they're pretty loud, even with a 3 chamber FlowMaster muffler. I'll be adding a small resonator when I get it back together.

Roy.