10 sleeves in a V8
#2596186
12/24/18 10:13 AM
12/24/18 10:13 AM
|
Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
OP
master
|
OP
master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
|
So, Im working on this little Dodge Hemi. It started life as a 241. It was willed to me from a friend that had it in storage for over 20 years. He bought it in disassembled condition in the 80s from who knows who. It was used in a boat originally. It came with headers, home built multi carb intake, roller cam, timing cover mounted magneto, etc... It was a performance built engine. So, Im evaluating the block. Measuring the bores, mains etc... I notice that none of the bores have any signs of hone marks or ridges. They all are sleeved. After looking closer, two of the cylinders are double sleeved. The two that are double sleeved are big enough on the OD to have broken through the water jackets in the block. 8 normal sleeves made me happy. The 2 big sleeves make me nervous. The fact that the engine was never honed after sleeves being installed makes me think the original owner was maybe skeptical of the repair and sold the whole shebang. I have no way of working backwards to find the original owner. What I was going to do,was first pressure test it for leaks. If it makes it through that, I may do a very short fill of hard blok. Or, should I just find another block and start there? Is/ was it common to sleeve a sleeve?
"use it 'till it breaks, replace as needed"
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596219
12/24/18 12:19 PM
12/24/18 12:19 PM
|
Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
|
master
Joined: Sep 2014
Posts: 4,457
Washington
|
I've never done that. But...who knows? Who knows why they did it? I've repaired blocks with sleeves that holes the size of golf balls in the cylinder walls or had a big portion of the cylinder wall gone and never had an issue.
In fact, one I can think of was an FE Ford. The damn thing broke a piston at the top of the stroke and from what I could tell, left the piston up there because the rod came down and back up with the pin end on the cylinder wall and when the angle was right, the pin in blew right through the cylinder and ended up poking out the freeze plug hole! So it never did any other damage except the big hole in the cylinder wall. Was wierd for sure.
I sleeved that and it was happy as a pig in poo.
I'm not sure what to say. It may not be as big a deal or as bad one might think.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596315
12/24/18 03:15 PM
12/24/18 03:15 PM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
I wouldn't spend any money on the block, you know nothing about why he stopped. Inspect the crank carefully, most 241 didn't have dampers and many cracked in service A 270 (bigger bore, same stroke) hemi or poly (base engine in 1955 DeSoto) accepts all of those parts, much easier to find. The cam is low deck, Dodge only.
Boffin Emeritus
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596362
12/24/18 04:57 PM
12/24/18 04:57 PM
|
Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
OP
master
|
OP
master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
|
Source for a 270? Love to go that route. Crank rings when you tap it, and this had a balancer in the box painted the same color as the rest of it. Who knows what was added? The crank will be magnafluxed before any work is done to it. Engine bore is at 3.558” right now. Ring choices lead me to a .025 over Ford mod motor, taking it to 3.572”. What is a standard bore 270?
"use it 'till it breaks, replace as needed"
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596366
12/24/18 05:11 PM
12/24/18 05:11 PM
|
Joined: Dec 2006
Posts: 2,110 Byron, NY
W.I.N. Racing
top fuel
|
top fuel
Joined: Dec 2006
Posts: 2,110
Byron, NY
|
Sleeved sleeves was an old school repair...back when this stuff was "Newer" and harder to come by.
'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596564
12/24/18 11:14 PM
12/24/18 11:14 PM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
3.625", used in Dodge, DeSoto, and Plymouth (before the poly "A" engine was introduced). IIRC the 270 heads may be better w/r/t port and valve size.
Boffin Emeritus
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596692
12/25/18 12:38 PM
12/25/18 12:38 PM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
That cam has 2 important characteristics: 1. the 65 degree bank angle matches the 259/260 and 270, but is different from any other Gen-1 V8, including the Dodge tall deck 315/325. Re-clocking the cam position cannot correct this. 2. the cam nose drive is generally determined by the year (early vs. late), but yours could be either if swapped as a set
Boffin Emeritus
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596736
12/25/18 02:19 PM
12/25/18 02:19 PM
|
Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
OP
master
|
OP
master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
|
Thanks to everyone for the help. The cam is a steel roller. No stampings/ numbers on it. Intake lobe base: 1.315 Intake lobe apex: 1.600 Exhaust lobe base: 1.592 Exhaust lobe apex: 1.328
So, liftwise, it’s small. Not sure what the rocker ratio is. Here is a pic...
"use it 'till it breaks, replace as needed"
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596775
12/25/18 03:31 PM
12/25/18 03:31 PM
|
Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
OP
master
|
OP
master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
|
My plan is new pushrods, valves, springs etc... Im sure this cam has room for a more agressive lobe. Just not sure who to trust with doing it. The fact that it is old, rare, and needs special attention to low deck vs tall deck lifter bank angles all add risk.
"use it 'till it breaks, replace as needed"
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2596898
12/25/18 07:49 PM
12/25/18 07:49 PM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
Unfortunately true. I can't count how many times I've seen 59° quoted as the bank angle for every rear distributor Gen-1 engine (that's 7 different blocks), and the same cam prefix for 301/331/354 and 392 engines. It's not used at all in the Dodge and DeSoto engines. For those slightly puzzled by my "no correct" remark: if the angle you want is 59° (for a conventional cam) and you have a 65° block, simply rotating the cam 6° aligns one cylinder bank, but doubles the error on the other bank. I think of it this way: all of these engines (but definitely not all V8!) have 90° cylinder bank separation, but the tappet bank separation may be more or less than 90° total (some late Olds are 78°), the mini Dodge is widest at 130° (65° × 2). IDK the exact number, but the LSX is significantly wider than SBC.
Boffin Emeritus
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2597113
12/26/18 01:22 PM
12/26/18 01:22 PM
|
Joined: Jan 2003
Posts: 14,497 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,497
So. Burlington, Vt.
|
The problem with trying to regrind a steel billet cam core to something that’s a big departure from the current profile is, the heat treat only goes so deep. If you take too much off, you just grind off the hard stuff.
If you felt like you “needed” to make a profile change that could have you grinding through the hard stuff, you can have the new profile “roughed in”, send the cam out to be re-heat treated, then have it finished. That’s gonna take time and $$$$.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2597198
12/26/18 04:18 PM
12/26/18 04:18 PM
|
Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
|
master
Joined: Sep 2014
Posts: 4,457
Washington
|
For a cam I'd certainly call Jim at Racer Brown. He has all kinds of cores laying around.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
|
|
|
Re: 10 sleeves in a V8
[Re: TRENDZ]
#2598471
12/29/18 06:35 PM
12/29/18 06:35 PM
|
Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
OP
master
|
OP
master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
|
So, I went in to Howards cams to see what they could do. They are very busy, but they ran the cam on the profiler. See Attach They seemed squeemish about doing anything with my core. Everyone I call to try to source a cam ends up sending me to Donnie Johansen. He is the son of Howard Johansen of Howards cams. The Guys at Howards said Donnie just made some cores for the Dodge Hemi. The problem is getting a hold of him. The number I was given has an Ontario area code. Message box was full, and I hate to keep calling people who are busy. Anyone know him? Also was suggested to contact Steve Demos. I guess he does cam restoration and specialty stuff. I sent him my cam sheet and asked for a route to what I can do. I don't know the intricacies of the cam making process, But I would think this should not be as big of a problem as it is starting to seem. I could easily make the core myself as a round lobe, but hardening and grinding are not in my wheelhouse.
"use it 'till it breaks, replace as needed"
|
|
|
Re: 10 sleeves in a V8
[Re: fast68plymouth]
#2598478
12/29/18 06:43 PM
12/29/18 06:43 PM
|
Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
OP
master
|
OP
master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
|
The problem with trying to regrind a steel billet cam core to something that’s a big departure from the current profile is, the heat treat only goes so deep. If you take too much off, you just grind off the hard stuff.
If you felt like you “needed” to make a profile change that could have you grinding through the hard stuff, you can have the new profile “roughed in”, send the cam out to be re-heat treated, then have it finished. That’s gonna take time and $$$$. This seems like a reasonable approach. I would think someone could do this for me. Time is not an issue, and cost is what it is. The current core is low lift and narrower lsa. Im looking for something with up to .400" lobe lift, mid 240-250 @.050 on a 112-114 for a high pressure blower application.
"use it 'till it breaks, replace as needed"
|
|
|
|
|