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Old 28th-May-2016, 08:33 AM   #16
sbc1320
 
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Dynatech, 3/8" flanges top and bottom along with their captured style collector donut gasket that cannot leak or blow out. Best fitting and looking header I have owned. They fit my angle plug AFRs really well. I think angle plugs have more room than straight plugs as they angle away from the header tubes.

I realize mine are on a 3rd gen., but the fit and finish are super.
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Old 28th-May-2016, 10:21 AM   #17
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I put the flowtech long tubes on mine, sucks I have to raise motor about 6" to get them in and out. The bolts are so close to the tubes, its almost impossible to remove them, especially next to the firewall. Drivers side hangs down little more than passenger too. Next time motor comes out, I'm switching to a different header. I'm looking at stainless
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Old 28th-May-2016, 09:23 PM   #18
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my first set of headers i had on my 77 nova was flowtech for a 80's model monte carlo. No plug interference, just had to install the headers from the bottom of the car. never had any heat problems from the headers. for the price they where good. Not sure if there still made by the same mother company or not.
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Old 29th-May-2016, 07:16 AM   #19
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Quote:
Originally Posted by DERYL ATANASU View Post
I used Hedman #68276, worked well with my AFR angle plug heads. With my 383, 429 hp/441tq sbc.
Thanks, any issues with plugs at all?
It looks like the painted version of your is: Hedman Street Headers 68270, http://www.summitracing.com/parts/he...let/model/nova
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Old 29th-May-2016, 11:07 AM   #20
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Mine are Ball and Socket collectors. I had little trouble changing plugs. Looks like those would work fine. I just checked the summit link and read further, that part does have ball and socket collector, which I really liked.
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Last edited by DERYL ATANASU; 29th-May-2016 at 11:50 AM. Reason: additional information
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Old 29th-May-2016, 11:46 AM   #21
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When I say I had little trouble changing plugs, I did have to use various tools. Sockets with ratchet, socket with open end wrench, etc. I agree with sbc 1320, that angle plug heads work better as the plugs are angled away from the tubes.
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Old 29th-May-2016, 01:12 PM   #22
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Quote:
Originally Posted by DERYL ATANASU View Post
When I say I had little trouble changing plugs, I did have to use various tools. Sockets with ratchet, socket with open end wrench, etc. I agree with sbc 1320, that angle plug heads work better as the plugs are angled away from the tubes.
I have an old 5/8 Model A or T wrench that works good for the plugs. I also shortened a spark plug socket and opened up the 3/8" drive end for the ceramic of the plug to pass thru and you turn it with a wrench. The best tool I have is just an old off set wrench that is offset about an inch and it 90*s then 90*s back parallel to the handle. By far the best wrench for this job. I actually was going to take a regular box end wrench and add another box end in width from another wrench which would work well also, but already have the wrench I had from 25 years back or so.

I can get my plugs in and out easier with my 1 3/4" x 1 7/8" headers on my angle plug heads much easier than the 1 5/8" tubes that were on the straight plug heads(World S/R Torquer). Have way better 90* spark plug boot clearance as well.
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Old 14th-May-2017, 01:47 PM   #23
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Patriot Angle Heads, 2168, Which Headers?

Quote:
Originally Posted by RoyL View Post
Building another engine, 355 SBC from 1972 , I have a set of Patriot Heads, 2168, which are angle plugs...

Hooker Long tubes, #2451, say they won't fit with angle spark plugs...

Anybody tried these with a 4th Gen with angled plugs?
Patriot Headers H8047-1:

http://www.jegs.com/i/Patriot-Exhaus...047-1/10002/-1

or do I trade these angled plug heads in for straight?
Update on header fitment with the Patriot Angle Plug heads. I tried Hedman Street Headers 68270, they are fine except for the #3 Spark plug, it's too close, boot was almost touching and couldn't get a regular spark plug socket on the plug. Could go with with shorty plugs and might work without dimpling the tube.
see pics:






Tried the Patriot Full-Length Headers H8047 https://www.summitracing.com/parts/p...ons/model/nova, and they have clearance on all plugs, plenty more on #3:



Haven't install the engine in the Nova yet, could be other issues related to one or the other but spark plug clearance-wise, the Patriot headers will not require any denting or dimpling to get to regular spark plugs with the Patriot 2168 angled heads.
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Old 14th-May-2017, 03:22 PM   #24
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i always run sleeve over the wires the sleeves touch the headers but never been a problem.
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Old 19th-June-2017, 07:28 AM   #25
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I run hooked super comps with straight plugs and yes before I redid the front springs and shocks for a v8 engine they did hit speed bumps but but not anymore
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