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Topic Review (Newest First)
07-26-2011 10:22 AM
MXrider13
Quote:
Originally Posted by spinn
Moparts.com check the archives.

Yes.

576 heads flow about 150-155 at .500 lift. Magnums flow 219 stock and maintain high velocty for low rpm grunt.
I checked out Moparts and there is a lot of good info on there.
07-25-2011 07:53 PM
spinn Moparts.com check the archives.

Yes.

576 heads flow about 150-155 at .500 lift. Magnums flow 219 stock and maintain high velocty for low rpm grunt.
07-25-2011 07:36 PM
MXrider13
Quote:
Originally Posted by spinn
they fit . There is a head gap some people live with. The cheapest way to easy street is the magnum head swap. The magnum chamber is different and has less head gap.
What about a 70s LA Block?
07-25-2011 07:17 PM
Clint Cummins
Quote:
Originally Posted by spinn
they fit . There is a head gap some people live with. The cheapest way to easy street is the magnum head swap. The magnum chamber is different and has less head gap.
hey,

So the 90's magnum heads will bolt straight onto an 80's block?
07-25-2011 06:57 PM
spinn they fit . There is a head gap some people live with. The cheapest way to easy street is the magnum head swap. The magnum chamber is different and has less head gap.
07-25-2011 06:47 PM
MXrider13
Quote:
Originally Posted by Centerline
Just think of the 318 as a Mopar SBC. 273, 318, 340, 360 are all of the same design and anything you would do to improve the performance of a SBC will work on a small block Mopar. Nothing cosmic about Mopar small blocks at all, although they are better in almost every respect than a small block Chevy.

Centerline
HotRodsAndHemis.com

I wrote to the head man at General Motors and said, "I`m gonna have to desert you if you don't stop making cars for women." - John "Duke" Wayne
So would 340 heads work on the 318? I am starting to like Mopar even more from what I read.
07-25-2011 06:46 PM
spinn My 323 is a lil monster. Was in a 4spd 4door valiant. just as capable as a 340-360. The thing to do is use the magnum head swap. In effect results are similar to a vortec swap in terms of requirement for change. Use the GM beehive springs from a 3100 series 2 v6 engine. Mopar always had poor heads , but great oiling and rod internal provisions.

318 over 30
3.31 gear
4 speed 833
very good cam 340 mp2783 340 cam 290hp/same as 360 lil red express
Edelbrock streetmaster 0-4500 intake
1.88/1.60 heads milled .060
summit headers
GMHEI 4 pin module conversion.
07-25-2011 05:57 PM
Centerline Just think of the 318 as a Mopar SBC. 273, 318, 340, 360 are all of the same design and anything you would do to improve the performance of a SBC will work on a small block Mopar. Nothing cosmic about Mopar small blocks at all, although they are better in almost every respect than a small block Chevy.

Centerline
HotRodsAndHemis.com

I wrote to the head man at General Motors and said, "I`m gonna have to desert you if you don't stop making cars for women." - John "Duke" Wayne
07-25-2011 04:54 PM
MXrider13
Quote:
Originally Posted by Clint Cummins
Alright Thank you, Ill have to read Popular Hot Rodding more.
07-25-2011 04:23 PM
Clint Cummins hey,

Two good articles on what can be done with the 318:

http://www.popularhotrodding.com/eng...ine/index.html

http://www.popularhotrodding.com/tec...ine/index.html
07-25-2011 03:33 PM
MXrider13
318 Performance?

I was looking at a 70 Dodge D100 truck, that I am thinking about buying to be more of a daily driver and making my S10 for of just a strip car. If I get this D100 I want it to have some performance but more street friendly and occasional strip performance (maybe once every 2 months make a pass).
The D100 has a 318 in it and I can't find much info on 318 builds or performance. Just a few threads on other forums and one article in Mopar Muscle Magazine.
What should do to get more performance out of a 318, what are parts that will probably need replacing and what are common problems with the 318?

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