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56weav 11-20-2017 10:09 AM

Cam change
 
Having researched the cam change question ,different answers can be found.
The question. Can one change the cam in a 1986 sbc gmc without removing the engine. If so can it be done with butchering the radiator support .

The reason one asks. The ceiling height of my garage is low and a cherry picker probably won’t have enough clearance to remove the engine Outside isn’t really an option it soon to be winter in Illinois and cold
Thank you for response

DieselSJ 11-20-2017 01:38 PM

Re: Cam change
 
Yes. You need to pull the radiator, A/C condenser, and probably the grill also.

akart 11-20-2017 03:57 PM

Re: Cam change
 
I did my cam change w/the engine in and yes you do have to bash/bend the radiator support a bit. Bend it nice and it will bend back,not that bad. Oh and w/the radiator removed you can climb right in there for the valve adjustments.
A lot easier than removing the engine.

akart 11-22-2017 02:38 AM

Re: Cam change
 
Quote:

Originally Posted by akart (Post 8086667)
I did my cam change w/the engine in and yes you do have to bash/bend the radiator support a bit. Bend it nice and it will bend back,not that bad. Oh and w/the radiator removed you can climb right in there for the valve adjustments.
A lot easier than removing the engine.

Forgot to add that my truck is a 1986 also.

56weav 11-22-2017 04:29 PM

Re: Cam change
 
Thank you
I figured I could but needed a little confirmation
I’ll start my build soon gm 113 aluminum heads , 69 350 exhaust manifolds, aluminum intake, and a new cam and new rebuilt carb.
With the right head gasket it will give her 9 to 1 compression
It should solve the “ go faster option” on the interstate

raceman6135 11-24-2017 12:14 AM

Re: Cam change
 
When I replaced my cam and lifters, I removed the motor mount through bolts (one on the driver's side, and one on the passenger's side), lifted the engine a bit, and moved it to the side enough for the camshaft to clear the centre radiator support.

On one vehicle, I also had to remove the 2 bolts that go through the transmission crossmember into the rubber transmission mount. When I moved the front of the engine toward the passenger's side in order to get the camshaft out, the transmission could rotate just a bit on the crossmember to afford me lots of room.

Warrens69GMC 11-24-2017 12:21 AM

Re: Cam change
 
Pull the front clip


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