390 stroker

1200 Views 7 Replies 4 Participants Last post by six pack, Sep 25, 2006

mopar89ram

Discussion Starter · Sep 23, 2006

I have a 68 block that has never been rebuilt. Came out of my dads 68 fury. I would like to build a 390 stroker. So far I know that the block needs to be bored .030 and I will need a 4' crank. On crane motors web site it says that the compression ration on a zero deck is 10.79 or 12. I would like something in the 10 to 1 ration, but would comprimise. What type of head would you guys use? I have a set of 302 casting 318 heads, and am thinkg about using 360 valves?? Or would you guys use the magnum 318 heads? I know if I go that rout I am limited to the manifolds I can use. Also what type of cam would be a good combo? I have also thought about a 358, a little less radical, but lower compression ratio. This engine will be for a street strip combo. Any info would be greatly appreciative.

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hemidup

· #2 · Sep 23, 2006

Why do you want to put all the time and effort into that little motor? Why don't you just build a 408?

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75 Power Wagon

· #3 · Sep 23, 2006

or even better, get a 340 block and build a 416 stroker! lol

On my 416, I'm gonna put port and polished stock J heads with the 2.02 intake valves... I eventually want to upgrade to a set of Edelbrock Performer Heads for their standard intake and exhaust setup... Other options would be a set of Mopar W2 econos... but then you will need a special intake, and possibly custom fabricated headers. plus you cant buy them new anymore. (the reasons why im not heading that route)

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hemidup

· #4 · Sep 23, 2006

The Edelbrock heads are the best bang for your buck. Can you get your hands on a set of X heads? www.sharadon.com might be able to help you out with the hard to find parts.

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mopar89ram

Discussion Starter · #5 · Sep 24, 2006

I want to build a 390 because that is the block I have. Also I want to be different, everyone I know has a 408. A 340 is too hard to find, and I don't have $1800.00

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75 Power Wagon

· #6 · Sep 24, 2006

http://www.1962to1965mopar.ornocar.org/ml-pitchercastingheadarticle.html

Theres a good website about small block heads...

depending on your funds... you could use a set of J/X heads, 302s, or newer swirl ports... or a set of fully port and polished edelbrocks from hughes will set you back about 2400... But your heads and cam is where you are gonna make your power.

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hemidup

· #7 · Sep 24, 2006

Okay, I understand. Just make sure you have the block sonic checked before you start the rebuild. No sense putting that time, money and effort into a bad block.

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six pack

· #8 · Sep 25, 2006

What are you building the motor for? How about some vehicle details.

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