Blue Thunder iron CJ heads, good or bad?
Page 1 of 2 • Share •
Page 1 of 2 • 1, 2 
Blue Thunder iron CJ heads, good or bad?
mitch on Mon 5 Jul - 14:01
I saw a set of Blue thunder iron cj heads for sale. what do you all know about them? hp potential, aproximate value, do they use a standard intake? anything you could tell me about them would be appreciated. they would be used on a truck so the extra weight isn't a problem.
mitch- Posts: 90
Join date: 2010-04-01 
Re: Blue Thunder iron CJ heads, good or bad?
dfree383 on Mon 5 Jul - 14:16
mitch wrote:I saw a set of Blue thunder iron cj heads for sale. what do you all know about them? hp potential, aproximate value, do they use a standard intake? anything you could tell me about them would be appreciated. they would be used on a truck so the extra weight isn't a problem.
chevy or ford exhaust port?
dfree383- BBF CONTRIBUTOR
- Posts: 6712
Join date: 2009-07-09
Location: Everywhere -
Re: Blue Thunder iron CJ heads, good or bad?
c.evans on Mon 5 Jul - 14:38
I've done a set of the Blue Thunder iron CJ heads for a truck puller out west. In general they are a very nice head. In regards to the set I did, one particular head was a nice casting,,,,it's mate was a leaker and it had some porosity holes in a few places. We had to repair the short side radius, and also the valve spring cup/seat area was very thin and we couldn't do any brazing (too thin), so we packed that area with epoxy. That particular set had the Ford style but raised exhaust port.
Art probably needs to cast some more,,,I suspect the demand is there.
Charlie
Art probably needs to cast some more,,,I suspect the demand is there.
Charlie
Last edited by c.evans on Mon 5 Jul - 20:48; edited 1 time in total
c.evans- Posts: 1505
Join date: 2008-12-03 -
Re: Blue Thunder iron CJ heads, good or bad?
dfree383 on Mon 5 Jul - 15:56
I'd agree Charlie a guy could make a few $$$ if they where to cast a few sets of CJ heads for the class racers, and maybe sneak in a few updates that the techs wouldn't be able to pick-up, like maybe some "fast as cast", bump a little hear add a little their type of thing...
Typical Used but not abused Iron CJ's see to be in the $600-$1000 range for good casting, have seen the for less and sometimes more, seems to depend on the location.
But as far as the BT iron heads their haven't been a whole lot of them made.
Typical Used but not abused Iron CJ's see to be in the $600-$1000 range for good casting, have seen the for less and sometimes more, seems to depend on the location.
But as far as the BT iron heads their haven't been a whole lot of them made.
dfree383- BBF CONTRIBUTOR
- Posts: 6712
Join date: 2009-07-09
Location: Everywhere -
Re: Blue Thunder iron CJ heads, good or bad?
rmcomprandy on Mon 5 Jul - 18:22
For power ... simply the BEST cast iron, stock production valve angle, (though the location is spread slightly from production Ford), cylinder head ever produced for a Big Block Ford.
rmcomprandy- Posts: 1863
Join date: 2008-12-02
Location: Roseville, Michigan -
Re: Blue Thunder iron CJ heads, good or bad?
lghting94 on Mon 5 Jul - 19:57
Would like to get my hands on a set
lghting94- Posts: 518
Join date: 2008-12-16
Location: Vine Grove Kentucky -
Re: Blue Thunder iron CJ heads, good or bad?
schmitty on Mon 5 Jul - 20:39
There was an iron head that Art cast with the BBC ex. Did it have a different designation?
schmitty- Moderator
- Posts: 2893
Join date: 2008-12-02
Age: 41
Location: Big Daddy in the House -
Re: Blue Thunder iron CJ heads, good or bad?
Nevs on Mon 5 Jul - 20:41
schmitty wrote:There was an iron head that Art cast with the BBC ex. Did it have a different designation?
They did indeed exist. We had a set back in the late '90's, traded them to a truck puller......Don't remember what the exact designation was.....
Nevs- BBF CONTRIBUTOR
- Posts: 2390
Join date: 2009-02-07
Age: 58
Location: NW Iowa(Odebolt) -
Re: Blue Thunder iron CJ heads, good or bad?
mitch on Mon 5 Jul - 20:46
lghting94 wrote:Would like to get my hands on a set
here they are, I wish I could afford them: http://www.460ford.com/forum/showthread.php?t=146804
mitch- Posts: 90
Join date: 2010-04-01 -
Re: Blue Thunder iron CJ heads, good or bad?
c.evans on Mon 5 Jul - 20:47
Thanks guys for the knowlegde, I'll go back and change my answer.
Charlie
Charlie
c.evans- Posts: 1505
Join date: 2008-12-03 -
Re: Blue Thunder iron CJ heads, good or bad?
schmitty on Mon 5 Jul - 22:05
Pretty fair price iMHO. They will still need a certain amount of porting to achieve all out performance capabilities. Very 
schmitty- Moderator
- Posts: 2893
Join date: 2008-12-02
Age: 41
Location: Big Daddy in the House -
Re: Blue Thunder iron CJ heads, good or bad?
lghting94 on Tue 6 Jul - 7:00
Very fair price if I only had money, why is it you can find these deals only when you are broke
lghting94- Posts: 518
Join date: 2008-12-16
Location: Vine Grove Kentucky -
Re: Blue Thunder iron CJ heads, good or bad?
dfree383 on Tue 6 Jul - 7:07
lghting94 wrote:Very fair price if I only had money, why is it you can find these deals only when you are broke
Ain't that the truth !!! Thats a pretty fair price for them NIB.
dfree383- BBF CONTRIBUTOR
- Posts: 6712
Join date: 2009-07-09
Location: Everywhere -
Re: Blue Thunder iron CJ heads, good or bad?
BOSS 429 on Tue 6 Jul - 11:42
mitch wrote:I saw a set of Blue thunder iron cj heads for sale. what do you all know about them? hp potential, aproximate value, do they use a standard intake? anything you could tell me about them would be appreciated. they would be used on a truck so the extra weight isn't a problem.
its a very good head, did a few 514 1 carb bt headed engines, depending on cam we used,and some port work make between 780 to 830
some are very thin by the valve guide
BOSS 429- Posts: 1513
Join date: 2009-08-10 -
Page 1 of 2 • 1, 2
Page 1 of 2
Permissions in this forum:
You cannot reply to topics in this forum