Would you be interested?

[junkyardhero]

I think a 318 2bbl with a 4 speed/3.91's would be a stop light warrior ... lol

Somewhere out there an old timer (older than me lol) will chime in...

absolute ripper

the 65 i just sold was 318 w 340 cam & springs, LD4B and a carter 625. with the 3.91's a short tire and 3.09 1st it was all elbows thru 2nd gear.

i imagine that with a 2bbl it would be much of the same but just run out of breath A LOT quicker.

back in the day i had a bunch of variations on that theme and while not "optimized" out, they all ran really really well. so i'd hazard a guess you could do some damage with the right combo of bits.

 

[318willrun]

Any other guesses on what a combo like we are discussing could run?? Only guess so far is 17-18's. 1973 340 Duster with 3.21's/auto ran 15.2's. 14.9's with slicks. Can't imagine a 318 with 318 parts running with that. 15.6's ???

 

[66fs]

318 Road Runner was 73 and 74, dual exhaust was part of the package. Not 68 or 69 as I was guessing. It was a very long time ago.

 

[66fs]

Any other guesses on what a combo like we are discussing could run?? Only guess so far is 17-18's. 1973 340 Duster with 3.21's/auto ran 15.2's. 14.9's with slicks. Can't imagine a 318 with 318 parts running with that. 15.6's ???

Can you use a 340 cam and 360 heads along with the TQ and intake?

 

[318willrun]

Can you use a 340 cam and 360 heads along with the TQ and intake?

no 318, to my knowledge, cam with a 340 cam. Not even the E48

 

[PRH]

Which cam came in the HP318 that was used with the 360 heads and TQ in police cars…….mid 80’s?

 

[318willrun]

Which cam came in the HP318 that was used with the 360 heads and TQ in police cars…….mid 80’s?

E48 engines... to my knowledge they were 318 cams, as in nothing special....

 

[George Jets]

My roller engine is '85

OK
That is pre-TBI

'85 Should still be a roller engine with the closed chamber heads, carb engine, 2 bbl intake, with mechanical fuel pump already in place.

Probably a fresh timimg chain would be in order, to keep the timing events right on.

This was an '85 318 Roller that I bought the closed chamber heads off of quite a few years ago.


☆☆☆☆☆

 

[George Jets]

I'd love to see a factory 68 69 318 road runner.

Here is a factory '69 318 2bbl Plymouth Satellite

☆☆☆☆☆

 

[318willrun]

OK
That is pre-TBI

'85 Should still be a roller engine with the closed chamber heads, carb engine, 2 bbl intake, with mechanical fuel pump already in place.

Probably a fresh timimg chain would be in order, to keep the timing events right on.

View attachment 1716390518

This was an '85 318 Roller that I bought the closed chamber heads off of quite a few years ago.


☆☆☆☆☆

Yes, for sure a new replacement timing chain

 

[318willrun]

Net numbers for the 318 police cars w/4bbl
165 hp @ 240 ft lbs (net of course)

This is on que with my '82 truck brochure, which claims the 318 4 bbl made 160/245

A few sights claim 175 hp for the '87 model. But we are seeing a pretty consistant range

 

[273]

I think a 318 2bbl with a 4 speed/3.91's would be a stop light warrior ... lol

Somewhere out there an old timer (older than me lol) will chime in...

Wouldn't you go 4 bbl, Didn't they come with 360 4 bbl and exhaust manifolds ? Some say 360 heads came with the intake but I don't know about that.

What about dealer installed options or foreign market 318 options or other car manufacturers they may installed a 318 as an option ?

 

[318willrun]

Wouldn't you go 4 bbl, Didn't they come with 360 4 bbl and exhaust manifolds ? Some say 360 heads came with the intake but I don't know about that.

What about dealer installed options or foreign market 318 options or other car manufacturers they may installed a 318 as an option ?

Yes, i will be using a 4bbl. As I stated above, I already have a cast TQ intake/and TQ. Yes, some 318's came with 360 heads.

I won't go to some "unheard of foreign-next to impossible to get" performance part that came on a 318 in Madagascar LOL. I'm thinking what was more available all over the 2nd hand car lots and new car lots in passenger cars. Think of what 318's you'd find in factory Satellites, Fury's, Polara's, Duster's, Darts, Cuda's, Diplomats, LeBaron's, Volare's, Aspens and the such in the good ole' USA. And if they were all in your yard, which pieces would you use from those cars to put together the best 318 to perform.

 

[Darter6]

I wonder if any 318 car came with 3.91's ..... I wonder if anyone could vouch this actually happened..

Only 318's with factory 3.91 gears was the "B" vans. 3 speed manual . Still then I would say it was optional order.
We saw many things at the dealership that never was,or supposed to be.
Old saying, never say never when it comes to Ma Mopar.

 

[jos51700]

I've driven stock 318's. And modified. I know what's between the two.

Unless you're putting it in a motorcycle or a midget sprint car, it's kinda btdt

 

[ValiantRacing]

I think the cam should be the one thing that does get changed, see if you pick the right one to make it all work. or build it, run it at the track, then change the cam.

 

[273]

Net numbers for the 318 police cars w/4bbl
165 hp @ 240 ft lbs (net of course)

This is on que with my '82 truck brochure, which claims the 318 4 bbl made 160/245

A few sights claim 175 hp for the '87 model. But we are seeing a pretty consistant range

At least net numbers is comparable to each other unlike gross.
Exhaust and timing might be the differences between those numbers.

What about exhaust ?
Pretty sure 360 manifolds were on some later model 318's, guess you would have to run single, what would be the largest pipe size offered ?

 

[nutz]

Would think if your using only 318 parts
Might find a pre emissions cam with a better profile then a roller
Not that I know anything but whatever there smallest chambers to give a compression bump might be more important then flow
Depends on rpms your running on the big end ..

 

[318willrun]

I've driven stock 318's. And modified. I know what's between the two.

Unless you're putting it in a motorcycle or a midget sprint car, it's kinda btdt

So you've taken the best components (or assumed best components) of the run of LA 318's and ran it at the track? What it run?

 

[318willrun]

I think the cam should be the one thing that does get changed, see if you pick the right one to make it all work. or build it, run it at the track, then change the cam.

you mean change the cam with other years of 318 production cams? Like, try a '68 cam then try a '90 roller cam?

 

[318willrun]

At least net numbers is comparable to each other unlike gross.
Exhaust and timing might be the differences between those numbers.

What about exhaust ?
Pretty sure 360 manifolds were on some later model 318's, guess you would have to run single, what would be the largest pipe size offered ?

• B-body small block manifolds were somewhat used between the two, yes. And, I actually have those.
• RR's had dual exhaust on 318's, so duals are fair game.
• As I stated in a earlier post, the exhaust will be the one thing that won't be "factory 318" because I'm not going to pay for a new exhaust only to remove it when this project is through. If I do this project, it's me funding the entire build, so the exhaust is the one cost I'm not going to eat... LOL ha!

 

[nutz]

On of my friends would build "stock"
B&S 5hps for go karts
He would go threw 20 cams to find the best profile.....
Just a thought but a worn out timing chain would retard the cam timing and give more top end unless your degree ing your cam
With oe stuff wonder what production veribles there are ....wish I had time to play

 

[273]

On of my friends would build "stock"
B&S 5hps for go karts
He would go threw 20 cams to find the best profile.....
Just a thought but a worn out timing chain would retard the cam timing and give more top end unless your degree ing your cam
With oe stuff wonder what production veribles there are ....wish I had time to play

Some stock car guy's go thru a ton of rockers to put together the best set they can.

 

[nutz]

Was thinking that too
Wonder if you would even want the same on intake and exhaust

 

[jos51700]

So you've taken the best components (or assumed best components) of the run of LA 318's and ran it at the track? What it run?

Couldn't tell you. I fell asleep before it crossed the finish line.