The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-12-2019, 08:40 PM   #1
Paul72
Senior Member
 
Paul72's Avatar
 
Join Date: Sep 2003
Location: Waterloo, IA
Posts: 948
Look what I found under the valve covers!

I am trying to find the source of a miss that just showed up on my Blazer. I cleaned & gapped the plugs, new wires, cap rotor and it's still there...

I pulled the valve covers to see if maybe a rocker arm fell off and found this! I still have the miss for the moment, but am feeling a bit better about the power plant!
Attached Images
  
__________________
'72 Chevy K20 - 383/4sp/205 - finished!
Next project - K/5 Tahoe (71 Blazer on 99 Tahoe chassis)
Paul72 is offline   Reply With Quote
Old 07-12-2019, 11:31 PM   #2
Greasey Harley
Registered User
 
Greasey Harley's Avatar
 
Join Date: May 2013
Location: Post Falls, ID
Posts: 407
Re: Look what I found under the valve covers!

Sweet!
Kind of makes you want to pull the intake, to look for more cool roller stuff, eh?
Greasey Harley is offline   Reply With Quote
Old 07-12-2019, 11:46 PM   #3
franken
Registered User
 
Join Date: Jun 2013
Location: Somewhere
Posts: 2,400
Re: Look what I found under the valve covers!

Apparently a PO had more money than brains. NP
Try opening the hood with the engine running after dark to check for crossfire.
franken is offline   Reply With Quote
Old 07-13-2019, 02:51 AM   #4
Martyt
Active Member
 
Join Date: Mar 2019
Location: San Diego
Posts: 118
Re: Look what I found under the valve covers!

Wow, did not expect that!
__________________
72' Cheyenne K10 short bed, 4spd, orig eng and tran, am/fm radio, tilt, tach, manual throttle, med. bronze met. tow hooks, Factory Build Sheet, Protecto Plate, etc
Martyt is online now   Reply With Quote
Old 07-13-2019, 07:45 AM   #5
Grumpy old man
Senior Member
 
Grumpy old man's Avatar
 
Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 6,041
Re: Look what I found under the valve covers!

Sounds like the surprise I found in a 350 small block I found for $300. When I opened it I found a new crank/cam/pistons along with all the visible parts turned out to be a 71 /350/ 4 bolt and after a little clean up I'm happy with it .
Attached Images
   
__________________
Grumpy old man is offline   Reply With Quote
Old 07-13-2019, 11:59 AM   #6
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,834
Re: Look what I found under the valve covers!

lobe on cam is bad bet ya
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 07-13-2019, 12:31 PM   #7
68Gold/white
Registered User
 
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 1,810
Re: Look what I found under the valve covers!

Those rocker arms look to be Harland Sharp brand, some of the very best roller rockers!!!
68Gold/white is online now   Reply With Quote
Old 07-13-2019, 02:21 PM   #8
HO455
Registered User
 
HO455's Avatar
 
Join Date: Feb 2016
Location: Portland Oregon
Posts: 5,750
Re: Look what I found under the valve covers!

Man some folks have all the luck. I'm lucky to find $2 in change under the seat of a new rig.
Congratulations! I hope your as lucky finding your missfire.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F3 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB http://67-72chevytrucks.com/vboard/s...d.php?t=698377
HO455 is online now   Reply With Quote
Old 07-13-2019, 03:32 PM   #9
Rickysnickers
Registered User
 
Join Date: Oct 2014
Location: Poway, CA
Posts: 737
Re: Look what I found under the valve covers!

Quote:
Originally Posted by HO455 View Post
Man some folks have all the luck. I'm lucky to find $2 in change under the seat of a new rig.
That makes two of us
Rickysnickers is offline   Reply With Quote
Old 07-14-2019, 07:52 PM   #10
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,086
Re: Look what I found under the valve covers!

Quote:
Originally Posted by 68Gold/white View Post
Those rocker arms look to be Harland Sharp brand, some of the very best roller rockers!!!
I believe they say "Crane Cams" right on them. Cranes the original gold rocker and now Comps. The Harland Sharps are a more copper/orange color.

Cool find though!
__________________
44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
Mike C is offline   Reply With Quote
Old 07-14-2019, 08:35 PM   #11
hjewell2
Registered User
 
hjewell2's Avatar
 
Join Date: May 2011
Location: mich
Posts: 586
Re: Look what I found under the valve covers!

I spy my little eye ,,, High bleed lifters by the pic I see, all rockers are on the valve seat position.
hjewell2 is offline   Reply With Quote
Old 07-14-2019, 09:35 PM   #12
BCOWANWHEELS
Senior Member
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 2,834
Re: Look what I found under the valve covers!

Bet the cam is plumb shot and all that metal has been pumped thru the engine...........pull oil filter, cut it open n inspect it..........jmo
__________________
I BELIEVE IN JOHN 3:16
BCOWANWHEELS is offline   Reply With Quote
Old 07-16-2019, 03:59 PM   #13
Paul72
Senior Member
 
Paul72's Avatar
 
Join Date: Sep 2003
Location: Waterloo, IA
Posts: 948
Re: Look what I found under the valve covers!

Found the miss!

I swapped distributors and it went away - the points were getting worn out. Gonna have to find an HEI dist eventually...
__________________
'72 Chevy K20 - 383/4sp/205 - finished!
Next project - K/5 Tahoe (71 Blazer on 99 Tahoe chassis)
Paul72 is offline   Reply With Quote
Old 07-16-2019, 04:17 PM   #14
Ken O.
Registered User
 
Join Date: Jan 2016
Location: Spokane WA
Posts: 65
Re: Look what I found under the valve covers!

Quote:
Originally Posted by Paul72 View Post
Found the miss!

I swapped distributors and it went away - the points were getting worn out. Gonna have to find an HEI dist eventually...
That's one of the first things I did when I bought my 67 GMC. A lot of issues went away with an HEI unit.
Ken O. is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:01 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com