Re: 5.9 magnum flywheel
[Re: sogtx]
#2883526
02/03/21 01:16 PM
02/03/21 01:16 PM
|
Joined: Mar 2007
Posts: 3,287 West Coast, USA
jbc426
master
|
master
Joined: Mar 2007
Posts: 3,287
West Coast, USA
|
I've got one you can have for $5 plus the ride.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
|
|
|
Re: 5.9 magnum flywheel
[Re: jbc426]
#2883555
02/03/21 02:05 PM
02/03/21 02:05 PM
|
Joined: Jul 2003
Posts: 5,180 upstate western ny
sogtx
OP
master
|
OP
master
Joined: Jul 2003
Posts: 5,180
upstate western ny
|
So i have a 1978 casting 360 I thought it was a magnum because of the vertical intake bolts - i guess it was in between LA and Magnum But Im thinking it is externally balanced - which means you need ext bal flexplate , too . If goin automatic Im just running it on a test stand to see if she is junk or not . Im bummed its not a real magnum . But oh well . Next issue - will available flywheels fit my BH .
Was gonna use it to test carbs , distributors , etc . And make noise in shop in winter .
If I can get a six pack intake that bolts up - would be great Didn t realize heads needed re drilled
Oh well jbc if thats the flywheel I need thats weighted - Itd be worth it - otherwise its just junk cast iron . Thanks, Andy
A cheap modman intake on needed list too . Lol
Last edited by sogtx; 02/03/21 02:07 PM.
|
|
|
Re: 5.9 magnum flywheel
[Re: Sniper]
#2884080
02/04/21 05:26 PM
02/04/21 05:26 PM
|
Joined: Jan 2003
Posts: 18,426 UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 18,426
UPPER MICHIGAN, MARQUETTE COUN...
|
I see no air injection ports below the exhaust ports. I do not think you can see anything port wise with the gasket in place. As far as magnum goes the valve covers should be 8 bolt as far as I know.
Last edited by NITROUSN; 02/04/21 05:28 PM.
|
|
|
Re: 5.9 magnum flywheel
[Re: NITROUSN]
#2884160
02/04/21 10:37 PM
02/04/21 10:37 PM
|
Joined: Jul 2003
Posts: 5,180 upstate western ny
sogtx
OP
master
|
OP
master
Joined: Jul 2003
Posts: 5,180
upstate western ny
|
All interesting ! Thanks for input . I have a hodge podge.! I wonder whats inside !
Last edited by sogtx; 02/04/21 10:38 PM.
|
|
|
Re: 5.9 magnum flywheel
[Re: NITROUSN]
#2884169
02/04/21 11:12 PM
02/04/21 11:12 PM
|
Joined: May 2019
Posts: 6,318 nowhere
Sniper
master
|
master
Joined: May 2019
Posts: 6,318
nowhere
|
I see no air injection ports below the exhaust ports. I do not think you can see anything port wise with the gasket in place. As far as magnum goes the valve covers should be 8 bolt as far as I know. 10 bolt valve covers and the heads with air injection have an extra boss below the exhaust port that is noticeable, it is not there on the OP's heads. Here's a pic of me cleaning out that air injection port on a 79 360
|
|
|
Re: 5.9 magnum flywheel
[Re: Sniper]
#2884172
02/04/21 11:35 PM
02/04/21 11:35 PM
|
Joined: Jan 2003
Posts: 18,426 UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 18,426
UPPER MICHIGAN, MARQUETTE COUN...
|
I see no air injection ports below the exhaust ports. I do not think you can see anything port wise with the gasket in place. As far as magnum goes the valve covers should be 8 bolt as far as I know. 10 bolt valve covers and the heads with air injection have an extra boss below the exhaust port that is noticeable, it is not there on the OP's heads. Here's a pic of me cleaning out that air injection port on a 79 360 I realize that but I believe his picture has the gasket covering them up.
|
|
|
Re: 5.9 magnum flywheel
[Re: sogtx]
#2884285
02/05/21 11:21 AM
02/05/21 11:21 AM
|
Joined: Jan 2003
Posts: 18,426 UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 18,426
UPPER MICHIGAN, MARQUETTE COUN...
|
Rockers are definitely studded d on Not sure on the exhaust air injection holes but studs on the rockers and vertical intake bolts along with the magnum style head bolts lean towards magnum. Like I said the earlier 5 bolt cover can bolt on a magnum with the 8 hole gasket. It could be glued ti insure it does not leak. Looking at those exhaust ports has me thinking the magnum did not have the injection holes. Also that head had many other identifiable casting features that tell me it is not a pre 92 casting.
Last edited by NITROUSN; 02/05/21 11:29 AM.
|
|
|
Re: 5.9 magnum flywheel
[Re: NITROUSN]
#2884717
02/06/21 02:11 PM
02/06/21 02:11 PM
|
Joined: May 2019
Posts: 6,318 nowhere
Sniper
master
|
master
Joined: May 2019
Posts: 6,318
nowhere
|
I see no air injection ports below the exhaust ports. I do not think you can see anything port wise with the gasket in place. As far as magnum goes the valve covers should be 8 bolt as far as I know. 10 bolt valve covers and the heads with air injection have an extra boss below the exhaust port that is noticeable, it is not there on the OP's heads. Here's a pic of me cleaning out that air injection port on a 79 360 I realize that but I believe his picture has the gasket covering them up. No they do not. The exhaust manifold gasket is substantially different if you have air injection ports. All that machined surface you see where I am drilling is covered by exhaust manifold gasket and there's be a big hole around the air injection port. A non-air injection gasket would not even cover where the holes are.
Last edited by Sniper; 02/06/21 02:12 PM.
|
|
|
Re: 5.9 magnum flywheel
[Re: NITROUSN]
#2884719
02/06/21 02:16 PM
02/06/21 02:16 PM
|
Joined: May 2019
Posts: 6,318 nowhere
Sniper
master
|
master
Joined: May 2019
Posts: 6,318
nowhere
|
Not sure on the exhaust air injection holes but studs on the rockers and vertical intake bolts along with the magnum style head bolts lean towards magnum.
There is no "lean". The Magnum head is the only factory head for the small block that has stud mounted rockers. Period. Vertical intake bolts can be added to an LA head if someone had a reason to run a Magnum intake on one. A simple matter of drill and threading holes. So stud mounted rockers are the visual indicator here, the casting number will be a double check. As far as getting a flywheel, your problems have just begun, lol. You may, or may not, have and LA rotating assembly, or a Magnum one. We already know someone put a Magnum top end on, it's not out of the realm of possibility that it also has a Magnum rotating assembly, which means different flywheel balance. Heck, I guess it could be internally balanced as well. Casting numbers on the crank and rods will tell you your answer on LA or Magnum, added balance material in the crank will answer the internally balanced or not question. LA rods have a wider small end that will not fit in a Magnum piston without machine work.
|
|
|
|
|