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#1
12-08-2013, 10:40 AM
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cam specs?
so i tore part of my engine apart and found this cam in stuffed in the housing. looks like the numbers have 9796 327. anyone able to provide the cam specs for this one? it looks like its larger than the other 1b cam i have sitting.
__________________
 Jon Peters 66 tempest 3880 lbs with driver 455 .40 over, 6x, XE274H cam, th350,9 inch 3.89, 275/50/15 mt dr 13.04 et / 102.51 mph 11.97 et/ 113.68 mph w/150shot 75 Astre Turbocharged OHC 6, TH350 1/8 mile stats 8.4813 ET / 82.07 MPH |
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#2
12-08-2013, 12:45 PM
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SCORE!
Year 1969. Code H/Pt# 9796327. Application ZD, ZH. Duration Int/Exh @ adv.260/260 Overlap 42 LSA 109 Lobe Lift .292/.292 Valve Lift as installed.438/.438 Hope she's in good/usable condition.
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When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car. 
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#3
12-08-2013, 12:53 PM
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sweet, well all but one lobe looks good, But i dont think it will cause a problem. there is a deep groove but its in the center of the footprint of the cam follower, which i wouldnt think would cause a major issue, just wear a follower improperly and needing to replace more often. the rest of the lobe looks good. Think this would be safe?
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#4
12-08-2013, 01:25 PM
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Hard to say from a picture. If the parkerization coating has been eaten through the lobe won't be long for the world no matter what (well short of sending to a cam grinder to get polished and re-coated). I'm not sure what would cause that wear pattern, it's like something got between the cam and follower and nicked the surface of one that caused that, but that is a heck of a deep groove for a simple nick. Strange.
__________________
__________________________________________ "How I learned to stop worrying and love the OHC Pontiac L6"  The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 3 & TKO-600 (Drag Week 2011, 2012 & 2015!) 1969 Firebird with a turbo'd Pontiac L6 controlled by a MegaSquirt 3 and backed with a microsquirt controlled 4L60e and 4.56 gears! (Drag Week 2018!) |
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#5
12-08-2013, 02:15 PM
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parka what? where would you get this done? Is this similar - http://swaintech.com/race-coatings/r...ated-bearings/ ?
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#6
12-08-2013, 03:50 PM
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It's a hardness coating on the outside of the cam. It's what makes the cam dark grey. Without it the lobes wear pretty fast. Comp has a new nitrogen method, but it's not compatible with the parkerization so an old cam cannot have their new method used on it.
__________________
__________________________________________ "How I learned to stop worrying and love the OHC Pontiac L6" The Silver Buick- '77 Skylark coupe w/455, SPX, MegaSquirt 3 & TKO-600 (Drag Week 2011, 2012 & 2015!) 1969 Firebird with a turbo'd Pontiac L6 controlled by a MegaSquirt 3 and backed with a microsquirt controlled 4L60e and 4.56 gears! (Drag Week 2018!) |
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#7
12-08-2013, 04:10 PM
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OUCH...
1st thing that came to mind were those friggen useless assembly clips.
They have destroyed many a good engine, but I wouldn't think they would cut that deep?? Either way if anyone has them on/in their engine THROW THEM AWAY!
__________________
When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car.
Last edited by Jeff Hamlin; 03-08-2015 at 08:20 AM. |
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#8
12-10-2013, 12:18 AM
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A cold beer says that grove is from knocking off a rocker when installing the cam & running it. (Huh, runs like heck!)
Upon looking backinside, PO said $#&*! and put the rocker back on the valve. Did someone say SCORE? |
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#9
12-10-2013, 06:42 AM
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One will never know,
take it to a cam shop and see what they say.
__________________
When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car.
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| The Following User Says Thank You to Jeff Hamlin For This Useful Post: | ||
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#10
12-10-2013, 10:51 AM
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This is a weird but true story.
On my old '67 Bird, I had what really felt like a harmonic road vibration that I just could not find. Installed a friend's new Redlines & wheels. Went from a 3.08 open to a 3.23 posi. Switched from 2 speed auto to a Saginaw 3 speed. Nothing helped. I had been running an H cam that had some very minor wear on 3 lobes but I figured it was better that an E cam, right? It ran super, I probably put 15K on it. At some point, I decided to swap the E cam back in. I was blown away, that vibration was GONE! |
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#11
12-10-2013, 10:54 AM
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Quote:
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#12
12-10-2013, 03:44 PM
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Yup #327 is the H cam. Nice score. I too would look for a good camshaft shop to get it repaired and reparkerized. Sorry that I do not know of one but I am tagging this for reference.
You may want to contact Jerry Woodland and ask if he knows a shop. Too bad that the OHC crowd has not documented the shops that are good for us to go to for these special things.
__________________
 69 OHC ZH Sprint Hurst 3 Speed 3:55 (1 of 213) 99 Valkyrie 1520cc Flat 6 108hp/110tq - For Sale http://sohcsix.yuku.com/forums/1/OHC-lounge Wanted: 1969 OHC "H" Camshaft |
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#13
12-10-2013, 03:46 PM
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Looky what I found
 
__________________
69 OHC ZH Sprint Hurst 3 Speed 3:55 (1 of 213) 99 Valkyrie 1520cc Flat 6 108hp/110tq - For Sale http://sohcsix.yuku.com/forums/1/OHC-lounge Wanted: 1969 OHC "H" Camshaft |
| The Following User Says Thank You to PMD1969 For This Useful Post: | ||
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#14
12-10-2013, 09:50 PM
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Quote:
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#15
12-10-2013, 11:39 PM
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So the new H cam I have is a # 9792538 and it is clearly & deeply marked H on the snout.
My reference material is buried, can someone shed some light on this one? |
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#16
12-11-2013, 12:20 AM
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Quote:
__________________
69 OHC ZH Sprint Hurst 3 Speed 3:55 (1 of 213) 99 Valkyrie 1520cc Flat 6 108hp/110tq - For Sale http://sohcsix.yuku.com/forums/1/OHC-lounge Wanted: 1969 OHC "H" Camshaft |
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#17
12-11-2013, 07:53 AM
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What I have on file...
Camshafts Casting #
9782012 ’66-‘67 (E) 1BC 9782218 ’66-‘67 4BC 9792538 ‘66-‘67 (E-D) 4BC 9790826 ‘68 (C) 1BC. GM# 546670, 546671 Gr# 0.519 9792539 ‘68-‘69 (E) 9796327 ‘69 (H) 4BC w/MT. GM# 546673
__________________
When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car.
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#18
02-07-2014, 11:00 PM
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Quote:
http://schneidercams.com Im still in search for a more local shop, but at least this is a start. |
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