Hooker side mount headers
Thread Starter
Burning Brakes
Joined: Oct 2003
Posts: 836
Likes: 26
From: Harrisburg Pa
Hooker side mount headers
I have a 69 vette with a big block, it has Edelbrock performer RPM heads # 6055 stamped in the head, I think these are Rectangular port heads, I dont know how to tell the difference between oval and rect ports, is this just on the intake ports or what.
My question is, I want to buy a set of Hooker side mount headers with side exhaust for a big block to fit my heads.
Some one must have done this before!
My question is, I want to buy a set of Hooker side mount headers with side exhaust for a big block to fit my heads.
Some one must have done this before!
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
They should be either #60559 or #605519 (polished) RPM 454-R rectangle intake port heads. The oval port versions all begin with #604...
Plan on hanging my Hooker sidemounts on a set myself, tho I got the bare ones so I could spec my own valves, springs, keepers... I may mock them up sometime soon just to make certain, but don't expect any issues since the exhaust ports are in the stock location. FWIW, they're going on a 427, several of which I've built for myself over the years.
Yes, to anyone who knows the exhaust ports could use a little help, I'm having them worked to improve flow a few % to take better advantage of the >.600" solid roller going in, after which the bang-for-the-buck factor will have made these heads the right call for my purposes. (Should you get tempted to play with them yourself, I advise leaving the floors alone.)
TSW
Plan on hanging my Hooker sidemounts on a set myself, tho I got the bare ones so I could spec my own valves, springs, keepers... I may mock them up sometime soon just to make certain, but don't expect any issues since the exhaust ports are in the stock location. FWIW, they're going on a 427, several of which I've built for myself over the years.
Yes, to anyone who knows the exhaust ports could use a little help, I'm having them worked to improve flow a few % to take better advantage of the >.600" solid roller going in, after which the bang-for-the-buck factor will have made these heads the right call for my purposes. (Should you get tempted to play with them yourself, I advise leaving the floors alone.)
TSW
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
We'll be looking for an upcoming thread with your glowing about how sweet they look, sound (what inserts you going with?) and perform; followed shortly thereafter by one proclaiming your entry into the "Hooker tattoo" club. 
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Tom is correct, doesn't matter what the intake port is, rectangular, or round, exhaust ports are the same.
what you want to do is bolt a gasket to the header flange and match the bolt holes. Most of the time the holes will be off a fraction of an inch.
what you want to do is bolt a gasket to the header flange and match the bolt holes. Most of the time the holes will be off a fraction of an inch.
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Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Sweet Thunder has a sound clip.
http://www.sweet-thunder.com/chamber..._corvette.html
In comparison, word is the Hooker MaxFlows have a mellower, deeper tone.
http://www.sweet-thunder.com/chamber..._corvette.html
In comparison, word is the Hooker MaxFlows have a mellower, deeper tone.
Thread Starter
Burning Brakes
Joined: Oct 2003
Posts: 836
Likes: 26
From: Harrisburg Pa
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
The STS's sure sounded better than those packs, tho a little on the tinny side to my ear. Of course, the open pipes sounded awesome IMHO. Surely someone around here has a clip of a shark w/MaxFlows. A member posted some dyno runs with them last year, but the links are dead. No detrimental effect vs. open sidemounts, BTW.
Racer
Joined: Oct 2004
Posts: 281
Likes: 9
From: New England
STS baffles, plus the end caps on the STS baffles are only Chevy Freeze plugs so if you drill to many holes while tuning them just get a new $1.00 freeze plug from NAPA and start over. I ended up removing them completely and love them. Just yesterday I was taking a ride and on the street an older gentlemen and his wife were walking by while I was idling at a light, I had my window up because it was cold so I could not hear what he was saying to me ,but he pointed to his ear a few times , and I said to myself " another old fart who does not like my side pipes " but instead he pointed to his ear again and gave me a thumbs up approval along with his wife!!
PS : I can say old fart because I am also 62 years old.
