C2- Small Block- Power Steering
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Safety Car
Joined: Feb 2006
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C2- Small Block- Power Steering
I am mocking up my engine components and found that the power steering pulley is hitting the bracket for the lower control arm. Stock Saginaw pump and cast iron pulley. This car never had power steering before, so I am trusting that the vendor sent me the correct parts. I jacked up the engine about 1/2" and it will now clear. Can someone with power steering on their car tell me how much clearance they have between the pulley and that bracket?
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From: St. Louis MO
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Even though I have now changed pulleys I originally had same 365HP pulley on and it cleared just fine. I just went out and check and I have about 3/4" clearance between pulley & bracket. Are you sure you are mounting correctly (just a guess)? The pulley groove goes on first and are close to the pump.
Not best pic but I think you can see the spacing.
George
Not best pic but I think you can see the spacing.
George
Team Owner
Joined: Aug 1999
Posts: 30,995
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From: Ontario
I can pass my finger through the area between the pulley and the bracket so it looks like 3/4".
Poking through the Paragon catalogue they show a difference between the 327/300 pulley (5 1/2") and the 327/350 pulley (6 1/8"). Yours appears to be the latter with the three openings.
Poking through the Paragon catalogue they show a difference between the 327/300 pulley (5 1/2") and the 327/350 pulley (6 1/8"). Yours appears to be the latter with the three openings.
Last edited by Paul L; Sep 8, 2007 at 10:41 AM.
Team Owner
Joined: Oct 2000
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From: Washington Michigan
Mine ('67 300hp) is exactly the same as Paul's - about 3/4" radial clearance from the O.D. of the stamped pulley to the bracket. With a 5/16" difference in pulley radius, there should still be clearance with the 6-1/8" diameter L-79 pulley. 
Le Mans Master
Joined: Jul 2003
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From: Westport CT
What I use on my L76 is really a special pulley for the L79 (350 hp) application, I had to mimic the L79 PS set-up since it is SHP and no PS app was available on my L76 - I had tried other pulleys but that's what I had ended up doing to get my PS to work out to my satisfaction on my L76 (mostly I had pulley line up issues)
Anyway, the pulley is pn 3834720, that should return an application of "65-68 350 HP W/O AIR". Volunteer Vettes has it at $105 (their pn PS48); I am sure you can get it elsewhere too.
Anyway, the pulley is pn 3834720, that should return an application of "65-68 350 HP W/O AIR". Volunteer Vettes has it at $105 (their pn PS48); I am sure you can get it elsewhere too.
Thread Starter
Safety Car
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Thanks to all for the pictures and measurements. My pulley is the cast iron 6-1/8th" diameter. I also did some measurements on the bracket that the pulley is hitting, and it seams to be where it should be. If it was sitting up 3/4" I would have some suspension misalignment.
Also, I am converting my engine to a long water pump and the appropriate pulleys. The longer pump moves the pulleys forward about 1-5/8". No problem ( I thought), I have the cutout in the crossmember for the big block pulleys. Wrong I was. Crankshaft pulley is hitting the crossmember, will not go on unless I jack up the engine.
The motor mounts are new from Energy Suspension. I guess I will go down to the local FLAPS tomorrow and measure up some stock ones.
Picture of my power steering pump brackets, appear to be correct?
Picture of crankshaft pulleys rubbing crossmember.....makes it tough to get the belt on!
Also, I am converting my engine to a long water pump and the appropriate pulleys. The longer pump moves the pulleys forward about 1-5/8". No problem ( I thought), I have the cutout in the crossmember for the big block pulleys. Wrong I was. Crankshaft pulley is hitting the crossmember, will not go on unless I jack up the engine.
The motor mounts are new from Energy Suspension. I guess I will go down to the local FLAPS tomorrow and measure up some stock ones.
Picture of my power steering pump brackets, appear to be correct?
Picture of crankshaft pulleys rubbing crossmember.....makes it tough to get the belt on!
