Chick,
The Poly 318 is like any other LA engine with the same production variances
in rocker ratios. Yes, the fix with the LA is to install the blueprinted
aftermarket Hughes (or other trusted brands) to get a true 1.5 or 1.6
ratio.
Mancini Racing has a nice write-up on the Hughes 1.5/1.6 rocker kit at
$479. The Poly 318 has a blueprinted rocker assembly available in a
non-roller 1.5 or 1.6 ratio with hard chromed shafts, fully bushed & trued
rockers, improved jam-nut adjusters...for approx. $539; a bit more but not
outrageous. The other offering is a nice set of hard chromed
shafts/fully bushed & trued OEM ratio rockers/with improved jam-nut
adjusters for $298; a very good deal and nice setup to replace the old-worn Poly
318 rocker assembly with their loose or bottomed-out/weak stock adjusters.
Of course, there was a custom run of full roller tip Poly Roller Rockers
done recently for some of our “adventurous” HIGH HP Poly engine guys.
By the way, I think the 318 Poly is the best HP/Torque engine for
indigenous powerplants. Less expensive than swapping an LA or Big Block
into the 62-65 Mopar if you are satisfied with making and easy 400-450 HP and
the same torque vintage motor. Realistically, it is hard to beat the
following stats on a mildly built Poly Stroker motor;
375HP Average from 3700-5700rpm
428ft.lbs. Average Torque from 3400-5400rpm
Nothing beats the simultaneous high/flat HP/Torque curve for the cost
outlay/uniqueness of this motor.
Gary Pavlovich
Sent: Wednesday, June 29, 2011 9:04 PM
Subject: Re: LeRoars current status
Exactly right, unless you use the "LA" style
318. The old blocks are pretty much the same but the heads on the newer
blocks (318) fit only the new block and the old poly heads fit only the old poly
block.
So performance mods are up to you on a pure poly
318. However, if you use the other block so you can use the heads then
Hughes has rocker arms and shafts for the more modern heads.
Chick
----- Original Message -----
Sent: Wednesday, June 29, 2011 9:01
PM
Subject: Re: LeRoars current status
They don't have them for the poly.
Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
On Tue, Jun 28, 2011 at 5:02 PM, Stephen Andrachek
<s.andrachek@xxxxxxxxxxx>
wrote:
This is why I keep telling people to get Hughes
Rocker Arms and Shafts. You get a true ratio of 1.5 or 1.6 (your
choice), no needle bearings to break and they ain't free but are worth the
money. The stock rocker arms are hard shaft and hard rocker
arm. Hard on hard causes wear and galling.
All I can say to anyone building a Mopar motor
(any size, small or big block) is take my advice, please (on the shafts and
rocker arms).
Chick
----- Original Message -----
Sent: Tuesday, June 28, 2011 12:58
PM
Subject: LeRoars current status
Hi Folks,
I thought I'd send a note to let everyone know what's going on with
LeRoar. I tried my hand at cam degreeing by first checking the original
cam. I found it only had .396" lift instead of .450". That was due to the
rocker ratio being 1.38 instead of 1.5 as advertised. So I guess
it's amazing it ran as good as it did with such a small lift. I also
installed the new cam and tested it on #1 cylinder and found that I will
have to wait for the new heads before I can use the new cam. The springs
will bind as there is only .008" clearance at max lift. I'd probably bend
a pushrod. I pulled the heads now and will be removing the engine soon. I
want to solve some oil leaks and I think the front trans seal is leaking.
I'm going to leave the trans in the car.
I hope I will be able to race at our MidAmericanMotorplex off I-29 at
the Glenwood, IA exit. I-29 is closed both North and South of it due to
flooding. So far I think it's OK but I may have to build a marine
poly if the river keeps rising. Dodger volunteered to transport LeRoar to
the 1/4 mile track at Kearney, NE if MAM isn't running. Kearney is a bit
far to drive a car to race. One hiccup and you have a long walk.
The Summer is beautiful, albeit wet. Get those Mopars on the
road.
Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
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-- directly to that person. That is, send parts/car transactions and
negotiations as well as other personal messages only to the intended
recipient, not to the Clubhouse public address. This practice will protect
your privacy, reduce the total volume of mail and fine tune the content
signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse
Discussion Guidelines:
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Rich Kinsley '64 Dodge Polara 4dr 318poly
w/goodies
--
Please address private mail -- mail of
interest to only one person -- directly to that person. That is, send
parts/car transactions and negotiations as well as other personal messages
only to the intended recipient, not to the Clubhouse public address. This
practice will protect your privacy, reduce the total volume of mail and fine
tune the content signal to Mopar topic. Thanks!
1962 to 1965
Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html
and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
--
You received this message because you are subscribed to the Google Groups
"The 1962 to 1965 Mopar Mail List Clubhouse" group.
http://groups.google.com/group/1962to1965mopars?hl=en.
--
--
Please address private mail -- mail of interest to only one person --
directly to that person. That is, send parts/car transactions and negotiations
as well as other personal messages only to the intended recipient, not to the
Clubhouse public address. This practice will protect your privacy, reduce the
total volume of mail and fine tune the content signal to Mopar topic.
Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html
and
http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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