390 build plan, comments, suggestions?
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Posting Guru
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From: the side of a mountain
390 build plan, comments, suggestions?
i just bought an engine from the junk yard i work at and this is going to start my build
mirror 105 block guessing .040 to clean it up becuase it has been rebuilt before
trw L2291 pistons
block decked for 0 deck clearance
.038 head gasket
crane 343801 cam matching lifters and springs
police interceptor intake
crane adjustable rockers and push rods
heavy duty rocker shafts from DSC
jet flow stainless 1.65 exhaust valve
jet flow stainless 2.09 intake valve
ported D2 heads
hardend seats
MSD pro billet ready to run dizzy
MSD 6 offroad ignition
MSD blaster high vibration coil
holley 670 truck avenger
hedman ceramic coated headers
2.5" ehxuast
flowmaster 10 series single chamber mufflers
that is my basic plan for the engine, any comments or suggestions are welcome becuase some of yall know far more about these engines than i do.
mirror 105 block guessing .040 to clean it up becuase it has been rebuilt before
trw L2291 pistons
block decked for 0 deck clearance
.038 head gasket
crane 343801 cam matching lifters and springs
police interceptor intake
crane adjustable rockers and push rods
heavy duty rocker shafts from DSC
jet flow stainless 1.65 exhaust valve
jet flow stainless 2.09 intake valve
ported D2 heads
hardend seats
MSD pro billet ready to run dizzy
MSD 6 offroad ignition
MSD blaster high vibration coil
holley 670 truck avenger
hedman ceramic coated headers
2.5" ehxuast
flowmaster 10 series single chamber mufflers
that is my basic plan for the engine, any comments or suggestions are welcome becuase some of yall know far more about these engines than i do.
Posting Guru
Joined: Oct 2005
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I don't believe you can get the 2.09" intakes and 1.65" exhausts both in a D2 head.. I'd just go for the exhausts if you have to opt for one or the other.. if you've got the cash to put in both valves into those heads, you'll be better off to buy the edelbrocks, IMO... a good valve job and machining just the exhausts with all new valves and springs cost 700 bucks around here... I'd also buck up and buy the 6AL ignition box, cheap insurance for overrevs.. and according to the desktop dyno, that cam doesn't make as much torque or have as flat of a torque curve as the 941 crane...
Post Fiend
Joined: Jan 2003
Posts: 8,600
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From: Iowa
I thought you could stuff CJ valves in the D2TE heads. Never tried it personally, but I always heard that you could.
Also, that Crane 343801 cam has quite a lot of lift. I think with the stock spring retainers and umbrella stem seals you'll have a problem with the stem seals squishing onto the top of the valve guide.
Also, that Crane 343801 cam has quite a lot of lift. I think with the stock spring retainers and umbrella stem seals you'll have a problem with the stem seals squishing onto the top of the valve guide.
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
2.09's and 1.65's will fit. Same spacing for both the CJ and all other std FE heads. The MR, HR and TP heads had wider valve spacing for bigger valves. But for all that work and money, you'll be close to what out of the box Edelbrock aluminum heads run. Skip the MSD stuff and run a Duraspark or points dist. with a Pertronix and you'll have the money for the aluminum heads, combined with what you're spending on your iron heads.
Last edited by baddad457; Jul 3, 2006 at 09:40 PM.
Posting Guru
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there's room, but you run into cracks and other problems since it cuts down the space between the valves, at least that's what I've been told. the main point i was getting at any way was the cost factor and how close you'd be to aluminums anyway... you'd definitely have to go aftermarket retainers with that much lift, the 941 cuts it pretty close to the stem seals....
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Originally Posted by fordraceboy
there's room, but you run into cracks and other problems since it cuts down the space between the valves, at least that's what I've been told. the main point i was getting at any way was the cost factor and how close you'd be to aluminums anyway... you'd definitely have to go aftermarket retainers with that much lift, the 941 cuts it pretty close to the stem seals....
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