project 390
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Originally posted by fordboy1973
Can you guys help please he wants to know as soon as possible and if its a good deal and if it will have better power i would lie to buy it. Please help
Can you guys help please he wants to know as soon as possible and if its a good deal and if it will have better power i would lie to buy it. Please help
One of those "not on 87 octane" motors. If you are going to rebuild the 390GT motor, then there is nothing in there that isn't already in your existing 390 - the only reason to buy it would be to get 4bbl intake, or if your existing block /heads/crank/rods can't be rebuilt. Or, you're crazy enough to reuse the pistons. So, for the $300 you'd pay for it, you're just getting a heavy intake, an Edelbrock will probably cost that much. If it's fresh and runnable the way it is, it's quite a good deal.
The 390GT didn't have bigger exhaust valves than any other FE, the 428CJ is the only one with bigger exhaust valves. It's a worthwhile upgrade, as mentioned by Ratsmoker.
Posting Guru
Joined: Jul 2003
Posts: 1,268
Likes: 0
From: Eureka, Ca.
Check this out:
http://www.edelbrock.com/automotive/index.html
This is basicly what you would get with a 4 berrel and performer cam. you don't need the intake from edelbrock it is pretty much the same as stock, just madout of aluminium.
or
http://www.edelbrock.com/automotive/index.html
This the setup I went with. the heads are expensive but you get what you pay for.
http://www.edelbrock.com/automotive/index.html
This is basicly what you would get with a 4 berrel and performer cam. you don't need the intake from edelbrock it is pretty much the same as stock, just madout of aluminium.
or
http://www.edelbrock.com/automotive/index.html
This the setup I went with. the heads are expensive but you get what you pay for.
Last edited by Randyb12; Jan 27, 2004 at 07:34 PM.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Originally posted by fordboy1973
Hey guys one more question if i were to be looking for a new set of stock heads, what casting number should i look for is aby one kind a little better than the other.
Hey guys one more question if i were to be looking for a new set of stock heads, what casting number should i look for is aby one kind a little better than the other.
There are earlier castings but not necessary for performance or longevity.
The C8 and D2 heads are identical in all other aspects. The only upgrade to do to the heads would be to put 428CJ exhaust valves in it, but not necessary.
Postmaster
Joined: Nov 2002
Posts: 3,447
Likes: 1
From: Littleton, CO
That's what I was going to say...
One other thing, if you are looking to salvage a set of heads out of the bone yard, try unbolting the top exhaust bolts. If you break them off there, you don't own them
I managed to pull a nice set of D2's a month back and all the bolts came out nicely...
--MG
One other thing, if you are looking to salvage a set of heads out of the bone yard, try unbolting the top exhaust bolts. If you break them off there, you don't own them
I managed to pull a nice set of D2's a month back and all the bolts came out nicely...--MG
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Originally posted by Mike G
That's what I was going to say...
One other thing, if you are looking to salvage a set of heads out of the bone yard, try unbolting the top exhaust bolts. If you break them off there, you don't own them I managed to pull a nice set of D2's a month back and all the bolts came out nicely...
That's what I was going to say...
One other thing, if you are looking to salvage a set of heads out of the bone yard, try unbolting the top exhaust bolts. If you break them off there, you don't own them
I managed to pull a nice set of D2's a month back and all the bolts came out nicely...
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Elder User
Joined: Sep 2003
Posts: 794
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From: Portland, OR
I'm running the D2 heads with stock size valves, just bowl hogged and they work great. I bought the whole motor from U-pullit with D2's, the later reinforced truck block and a standard 390 crank for $125. I bet the motor didn't have 20K on a rebuild. Already had heads drilled for bronze guides and oil mods done to it. Saved me some money when I brought it to the machine shop
