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Old 03-12-2013, 10:56 PM
haun94 haun94 is offline
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Join Date: Mar 2013
Location: Illinois
Age: 20
Posts: 3
Gender: Male
Vehicle: 1986 Dodge Ram 150 Royal SE
Trim Level: Royal SE
Color: Two tone, Maroon and white
Engine: 1981-1987 318ci (5.2L) LA V8 140hp
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Default 86 Rebuild?

I have a 318 v8 that Im looking to rebuild. I need some help on finding out what would be the best setup for the mods. I was wondering if anyone knew of a book that would list different setups and the statistics after being done. This is my first rebuild and if anyone has rebuilt a 318 and has the list of parts they used and the Compression ratio and HP they got please reply or email me and if you know of a book that I can purchase.

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Old 03-13-2013, 10:30 AM
shot shot is offline
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Join Date: Nov 2012
Location: N Alabama
Age: 61
Posts: 8
Gender: Male
Vehicle: 1986 Ram Charger 150 Royal SE
Trim Level: SE
Color: Dark grey/Silver
Engine: 1981-1987 318ci (5.2L) LA V8 140hp
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just do a google for "318 street builds" or " 318 mild builds" or 318 receipes
Lot of good info out there

a few of them have parts list and basic numbers. Hotrod mag. is a real good one if U want to spend $ for machining and such. THEY got 400+ hp out of a 318.

U should have the #302 cast swirl port heads on the 86 motor, which are good stock heads for the 318 but can be made better with some work.

Good Luck

Last edited by shot; 03-13-2013 at 10:35 AM.
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Old 03-13-2013, 01:15 PM
crazzywolfie crazzywolfie is offline
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just make sure the carb you use is no larger than 400cfm. the biggest mistake most people make is over carburating their engine which results in crappy gas mileage and not very good performance.
91 & 81 d150 carburated 318's 93 R.C. F.I.318
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Old 03-13-2013, 11:49 PM
Gen1dak Gen1dak is online now
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Join Date: Aug 2011
Location: MS Gulf Coast
Posts: 1,660
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Vehicle: 1990 RamCharger
Color: Red
Engine: 1988-1991 318ci (5.2L) LA V8 140hp
Rep Power: 4
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A mild and wild example as mentioned. Good reading.

Use ARP rod and crank hardware and you'll have a solid, reliable 6,000 rpm engine. My first 318 was in a '69 Charger. It was a budget build. We re-used the factory bolts and I regularly revved the 5,800 rpm...I mean multiple times a day....and it never broke. Back then there weren't nearly as many parts available, and I was the typical broke teen. I did manage to use the CompCams 260 High Energy cam, some cheap headers, an Edelbrock SP2-P intake (not great for top-end power, but it was a 4V intake and it made dynamite low end power. It was a good combo for a 3,800lb + car with 2.76 gears. It also regularly managed 19mpg. I tried the old 360 heads and intake swap, but mileage dropped to 17mpg, and it lost a little bottom-end power. Within six months I'd gone back to the 318 heads and SP2-P. Nowadays, the cams are better, intakes too. It's a lot easier to tune around the usual issues and keep the low-end power and mileage while making more top end power than ever. Where I figure I had a 250hp 318, (270 with the 360 heads/intake), you can easily get 400hp with a 360-topped 318 these days. Oh, started with a Holley 600 vacuum sec. Had no idea on carb tuning, and didn't have a box full of Holley tuning parts. Eventually got what I wanted to begin with, a 750 Edelbrock AFB-style carb. Had it tuned in a few minutes, made one metering rod swap and it was running better than ever. Holleys are great, but if you don't know much, avoid them.

Last edited by Gen1dak; 03-14-2013 at 12:08 AM.
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