6 Bolt AFR heads
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TECH Junkie
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Joined: May 2003
Posts: 3,898
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From: Clayton, North Carolina
Jim, we will be using a stud that has 7/16 thread into the aluminum then tapers down to 3/8 for the fastener, this is the same system we use on a BB chevy and has worked well in the past.
Nasty, You would be better off to just buy a All Pro or ET 6 bolt head from the start, but I already own these heads and have lots of time making them work for me in the past, so I decided to take the next step.
David, I was going to just give you my block and heads last week, but I could not find your phone number so I decided to keep them!!
Tony, I had to weld the deck up on these heads when they were new to make them work for my intended use and they did great(1700hp-6 second 1/4). I have access to a process that works for me and many others for head repair. You are right that the heads in stock form can make 4 digit power, but I want the first digit to be a "2", and stock they don't have a chance.
Kurt
Nasty, You would be better off to just buy a All Pro or ET 6 bolt head from the start, but I already own these heads and have lots of time making them work for me in the past, so I decided to take the next step.
David, I was going to just give you my block and heads last week, but I could not find your phone number so I decided to keep them!!
Tony, I had to weld the deck up on these heads when they were new to make them work for my intended use and they did great(1700hp-6 second 1/4). I have access to a process that works for me and many others for head repair. You are right that the heads in stock form can make 4 digit power, but I want the first digit to be a "2", and stock they don't have a chance.
Kurt
Originally Posted by 427
You are right that the heads in stock form can make 4 digit power, but I want the first digit to be a "2", and stock they don't have a chance.
Kurt
Kurt
Thats an awsome Sig Quote right there Kurt......
Thanks for the reply.... I PMed ET Performance on a set.....
Kyle
Originally Posted by 427
Tony, I had to weld the deck up on these heads when they were new to make them work for my intended use and they did great(1700hp-6 second 1/4). I have access to a process that works for me and many others for head repair. You are right that the heads in stock form can make 4 digit power, but I want the first digit to be a "2", and stock they don't have a chance.
Kurt
Kurt
And I agree a four bolt arrangement wouldn't suffice with a "2" in front of the four digits...
If you welded up a bare casting I could have sent it to heat treat for you after you were done machining it. If you want to blow the guides and seats out when your done I could probably still help you with that.
Either way good luck hitting the duece figure your trying to achieve.
Cheers,
Tony
8 second mod
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From: East Side Performance! mASShole
kurt, i did the same welding on the inside of my afr's. helped alot. i think i talked to you about it a couple years ago.
i found my car to work |(on spray) well with the heads welded, the copper spray on the gaskets, and l-19's tq'ed to like 90ft pounds, i pushed no water last year, and made just under 1,000 rwhp with spray. i think with 2 extra bolts we may be good
let me know how this works out because i may do the same to mine if it works. i also have some $$ into my afr's, and my pistions are being made to fit the cc of the head, so if it works, a little welding, and im good to go..
good luck with the 2,xxx!!!!!!!!
i found my car to work |(on spray) well with the heads welded, the copper spray on the gaskets, and l-19's tq'ed to like 90ft pounds, i pushed no water last year, and made just under 1,000 rwhp with spray. i think with 2 extra bolts we may be good
let me know how this works out because i may do the same to mine if it works. i also have some $$ into my afr's, and my pistions are being made to fit the cc of the head, so if it works, a little welding, and im good to go..
good luck with the 2,xxx!!!!!!!!
