a millisecond glance at the pics, I could tell it was not a big block!
Hedman Headers Fit
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 9,063
Likes: 2,736
2022 C3 of the Year Finalist - Modified
Hedman Headers Fit
Just thought I would post the pics of my engine installation and how well the Hedman headers fit.Attachment 47814957
Attachment 47814958
Attachment 47814959
Attachment 47814960
Attachment 47814958
Attachment 47814959
Attachment 47814960
Last edited by Shovels and Vettes; Mar 28, 2022 at 07:51 PM.
Race Director
Joined: Jan 2000
Posts: 12,399
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From: San Jose CA
That is beautifully detailed.
I have Hedman 68301-6s on my 78. They fit great on the driver's side, but the passenger side is very close to the idler arm and I had to grind some of my scatter shield off to get the header up against the head.
I have Hedman 68301-6s on my 78. They fit great on the driver's side, but the passenger side is very close to the idler arm and I had to grind some of my scatter shield off to get the header up against the head.
Racer
Joined: Sep 2013
Posts: 284
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From: St Louis MO http://1972corvetterestomod.blogspot.com/
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 9,063
Likes: 2,736
2022 C3 of the Year Finalist - Modified
Passenger side
Just realized the pictures I posted did not show the passenger side installed. I have the heavy duty Moog idler arm, and it is close, but the headers required no modification. There is probably 1/8 inch between the header and the rubber seal on the idler arm? We will see if it survives the heat.
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 9,063
Likes: 2,736
2022 C3 of the Year Finalist - Modified
Big BLock
If I had a big block, I would use the stock big block manifold. It looks cool and by design would appear to be a decent manifold. Not as restrictive and lacking flow as the rams horn. And it is no surprise to me that headers don't fit. There is only so much room in a Corvette engine bay, and the big block engine is tight.
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Race Director
Joined: Jan 2002
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From: No Where USA
Burning Brakes
Joined: Feb 2017
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From: Kissimmee Florida
Well done ! Love that you painted it Chevy orange ! Corporate blue just doesn't do it for me ! I did my big block for my Nova in it and regretted it every day once I had it all together!
That is one sweet 77 !
That is one sweet 77 !
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 9,063
Likes: 2,736
2022 C3 of the Year Finalist - Modified
Orange
As for headers, I switched to Stainless Work Stainless Steel headers and exhaust...pricey but very high quality and actually fit even better than Hedmans, and more ground clearance.
Last edited by Shovels and Vettes; Feb 9, 2018 at 07:21 PM.
