well the easiest thing to do for well into 300 hp is the magnum conversion. edlebrock makes a head its almost a bolt on thing. but it can get expensive. search mopar muscle magazine online for an article to do it with OEM parts, some nitty gritty work required.

but since you are older and carbed and no emissions youve got it easy. flow is biggest problem with the 318. Get 340 or 360 heads, a 340 cam, anything over 600 cfm is probably useless (maybe even loose power). Then do headers and dual exaust. youll get close to 300 i think.

there is a "How To Hot Rod Small Block Mopar Engines" book which im prolly gonna buy. search it on amazon itll give you tips to build a small block


...or you could stroke it to 390.

 

If you get 300 hp it won't be stock.

 

lol i meant mine is stock =]

 

Great info, i'll start looking for some 360 heads, would i have to have them port and polished or just a direct swap?

 

wel problems with 360 heads are lowered compression (youd have to take of about .050) and youll need adjustable rockers, and port matched. You can also shave the 318 heads to get higher compression, i guess, but the valves are smaller.

some people say the 360 head is a waste unless you really plan on dumping gas into the 'teen. go here http://www.geocities.com/alwest_83/318

 

great info there man, thanks! i also found a GREAT website http://www.hotrod.com/howto/113_0304...ild/index.html

 

well the truck is still running pretty good, I'm going to get the seat and carpet redone, I'm gonna start working on a 85 318 i have out of a ram charger i need to see if it has 302 castings or else i need to find a set to have port and polished, then i need to come up with some money for the carb cam and intake...