poly 318 four barrel

[Mark B]

The poly blocks also have a lot of iron in them. When I was still in school my dad's 56 dodge truck with a poly in it. It was in need of another rebore and it was already .060 over. He found a set of standard bore 340 pistons and proceeded to bore it to suit. .130 over! He put an additional valve relief and chamfered the top of the piston to clear the head. He was already running a Racer Brown performance cam and a four barrel carb. This thing ran really good but you had to run premium fuel and cut the spark advance or it would sound like a popcorn machine under heavy loads. He ran that combo for a couple years until he burned holes in 2 pistons outrunning the law one night. I have wondered to this day what kind of compression ratio that thing had.

Also that dual quad intake pictured above was from either a 57 or 58 Plymouth they are pretty rare.

 

[RustyRatRod]

The single four barrel is actually more rare than the dual four barrel, as hard as that is to believe. Also, for the naysayers, here's what you can do with your "boat anchor".

http://www.1962to1965mopar.ornocar.com/poly318.html

Come on guys. It's a Mopar. It's got cool points in just that alone.

 

[Diecastdeluxe]

I have no use for any engine with the distributor in the rear. I like mine slanted on the passenger side front.

 

[kb67mopar]

I like the poly's just a bit different.

I chose an engine without a distributor...:toothy5:

 

[1948 santa]

very nice engine detail,my 63 sport fury is also a 318 a/c car.

 

[Darter6]

They are not so bad, If you have one they kinda grow on you ..............

 

[mrkinger]

Hi Darter ,is that an aluminum intake you have for your poly,if so were did you buy it.How about showing pics of the whole car .looks very good
Thanks
Paul

 

[Mooky]

there is a fellow over at the Hamb message board out of Canada building an exotic 500 hp + poly right now. Has his whole build in the post. and he tell's ya exactly what he has done or will and where and what parts are needed. The guy is a huge data base of knowledge when it come to the poly engine family and has built them in the 600+ hp range. If you are looking for knowledge on these engines, he is worth a look up.

 

[Darter6]

The intake is a Weiand,No longer made,I got this one new in the box from Hensley Performance at a show in Bristol Tenn. about 10 years ago.They had about 20+ or so for $100.Don't even know if they are in business anymore.

 

[Darter6]

Along with a engine that nobody wants, The car is even more undesireable as it has 4 doors........But it does have TTi exhaust.

 

[mrkinger]

Nice car

 

[64BEL]

Beautiful car, Darter6!

 

[Darter6]

Other tid bits on the poly 318,, The 1963 service manual shows them as having 9.0 to 1 compression, Full floating wrist pins like the later 340,Soild lifter cam with adjustable rocker arms. Just the change to a 600 AFB and the exhaust made a big difference.

 

[Darter6]

I don't know anything about flow numbers on the poly head but the exhaust ports kinda look like that engine that starts with a ''H''.

Like you with your 426 Wedge,I have a complete 500'' sitting waiting to go in, but the thing runs so good I hate to take it apart.

 

[mrkinger]

You can google Gary Pavlovich ,he has alot of poly knowlege and likes to help,Good guy

 

[64BEL]

You can google Gary Pavlovich ,he has alot of poly knowlege and likes to help,Good guy

Gary is a member here, too. Maybe he'll pop in.

 

[mrkinger]

Yes 64 ,your correct ,but i dont see him on here to often

 

[pugmaster]

DUEL 4 intake

I have a Duel 4 intake RED in color I belkieve off a POLY. I got from and OLD Junk Yard NC. I wanna sell now!!! parts needed for my 2011 RAM,RT

 

[Darter6]

I like mine,I'm with you, they do return good fuel milage. lotsa torque.low RPM.
The post above about takin it to the drags,,MY guess in a full body "B" with a weight of around 36-3800 lbs with 3.55's........Mid to low 15's,,, maybe in good air 14.90's.

 

[1948 santa]

Hey bluefury that's a fine looking ragtop.Still looking forward to meeting you in Daytona on thanksgiving.