Rebuilt 400 heads?
Thread Starter
|
Cargo Master
Joined: Apr 2010
Posts: 2,600
Likes: 64
From: Billings, MT
Rebuilt 400 heads?
How much are they worth? Would anyone actually buy them? Working on decisions for my 400 build. My motor was rebuilt 4,000 miles ago by the previous owner. Heads have new springs and retainers with no rotators, hardened seats installed intake and exhaust, that's about all I know about them.
Trying to decide if I want to use them (because they don't need any work) or some Aussie Cleveland heads I can have for free that will need machine work. Further compounding the issue is that I talked to Tim Meyer and he's out of .030 over pistons for stock heads right now, but has the Aussie dished ones in stock. So waiting for the stock head pistons will push my time frame back about 3-4 months.
Power would be a little better with the Aussie heads I'm thinking. Better to have the dish in the piston than the head, better quench.
Trying to decide if I want to use them (because they don't need any work) or some Aussie Cleveland heads I can have for free that will need machine work. Further compounding the issue is that I talked to Tim Meyer and he's out of .030 over pistons for stock heads right now, but has the Aussie dished ones in stock. So waiting for the stock head pistons will push my time frame back about 3-4 months.
Power would be a little better with the Aussie heads I'm thinking. Better to have the dish in the piston than the head, better quench.
Thread Starter
|
Cargo Master
Joined: Apr 2010
Posts: 2,600
Likes: 64
From: Billings, MT
LOL, well he's my buddy, so I don't think he'd give them to you for free! My hangup is my heads are new, the Aussie's are not. The only advantage to the Aussies is slightly better quench with Tmeyer pistons (so what, 10hp maybe?), and maybe quicker time table, if they don't turn out to be a money pit.
Junior User
Joined: Apr 2011
Posts: 80
Likes: 0
Do the Cleveland heads and the Windsor heads share valvetrain? If they do you could move the springs and valves over and just put in new guides and freshen up the seats. What will be the added cost of the machine work to the Aussie heads.
And no, I don't think people would pay that much for stock 400 heads. If you are need of heads why not just get a 460 block and start there
.
And no, I don't think people would pay that much for stock 400 heads. If you are need of heads why not just get a 460 block and start there
.
Laughing Gas
Joined: Aug 2010
Posts: 896
Likes: 55
From: Bothell
Pretty sure your stock heads are not worth that much. But the good news is, unless the previous owner installed oversized valves or your buddy’s aussie heads have been cut for lager valves, the components on the stock head should swap over to the aussie heads. Then all it will cost you is a valve job/valve seats and clean up on the aussies. That should save some $ over selling the stock ones and buying all new components.
The aussies will be more detonation friendly too, allowing you to safely run a lower octane gas. The stock combustion chambers were not very conducive to detonation prevention.
<O
</O
That being said… this is the though process I went through to justify me buying aussie heads and paying to get them all fixed up for the upcoming rebuild. I sure hope I was right!<O></O>
The aussies will be more detonation friendly too, allowing you to safely run a lower octane gas. The stock combustion chambers were not very conducive to detonation prevention.
<O
</OThat being said… this is the though process I went through to justify me buying aussie heads and paying to get them all fixed up for the upcoming rebuild. I sure hope I was right!<O
></O>
Thread Starter
|
Cargo Master
Joined: Apr 2010
Posts: 2,600
Likes: 64
From: Billings, MT
Pretty sure your stock heads are not worth that much. But the good news is, unless the previous owner installed oversized valves or your buddy’s aussie heads have been cut for lager valves, the components on the stock head should swap over to the aussie heads. Then all it will cost you is a valve job/valve seats and clean up on the aussies. That should save some $ over selling the stock ones and buying all new components.
The aussies will be more detonation friendly too, allowing you to safely run a lower octane gas. The stock combustion chambers were not very conducive to detonation prevention.
<o</o
That being said… this is the though process I went through to justify me buying aussie heads and paying to get them all fixed up for the upcoming rebuild. I sure hope I was right!<o></o>
The aussies will be more detonation friendly too, allowing you to safely run a lower octane gas. The stock combustion chambers were not very conducive to detonation prevention.
<o
</oThat being said… this is the though process I went through to justify me buying aussie heads and paying to get them all fixed up for the upcoming rebuild. I sure hope I was right!<o
></o>I figure my heads should be worth $300-ish to the right person that needs them, but finding them? Doubtful. Not a lot of people rebuilding 400's anymore. I guess I could throw them on craiglist and see what happens.
Thread
Thread Starter
Forum
Replies
Last Post
72fordgts
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
7
Feb 12, 2017 10:02 PM
1956f100
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
15
Jun 13, 2004 12:16 AM
buttnuttn8
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
17
Jun 17, 2002 01:44 PM
