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#1 |
Registered User
Join Date: Dec 2004
Location: grand terrace , caifornia
Posts: 338
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SBC Pulleys?
Can anyone explain why there are single, double and triple groove lower pulleys and single, double WP pulleys? Im sure AC, power steering and smog pumps play a part but im trying to make sense of it all. Thanks
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#2 | |
Registered User
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
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Re: SBC Pulleys?
Quote:
Water Pump = 1/2 Power Steering = 1 Crank Pulley = 2/3 Alternator is always around water pump/crank Power steering is crank AC is water pump/crank If you have no ac .. Crank pulley = 2 If you have ac .. Crank pulley = 3 |
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#3 |
Registered User
Join Date: Dec 2004
Location: grand terrace , caifornia
Posts: 338
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Re: SBC Pulleys?
I am building a 77 C10 Heavy Half and it had a manual steering box and no ac. But did have a smog pump. I have a crank pulley with one groove that i think (dont remember for sure) came off this truck. I am adding power steering but will use the smog pump also, no ac. Do i need to get the double groove crank pulley? The spare steering pump that i have has a double groove pulley. Not sure what that is about?
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#4 |
Registered User
Join Date: Oct 2010
Location: Central, IL
Posts: 201
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Re: SBC Pulleys?
[QUOTE=karl;7375770]I am building a 77 C10 Heavy Half and it had a manual steering box and no ac. But did have a smog pump.
karl: Depends on what engine is in the truck. Mine is a LS9(350) with HD emissions which means it "Did not" come with a smog pump or cat. converter. Larry ![]() P.S. Not sure about the non H.D. 350. BTW mine is also a non P/S+A/C truck. |
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#5 |
Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,539
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Re: SBC Pulleys?
I think the double grove PS pulley makes AC belt routing easier. The 2nd grove gives the AC belt a safe routing around the PS pump pulley.
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#6 |
Registered User
Join Date: Dec 2010
Location: Visalia, Ca
Posts: 707
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Re: SBC Pulleys?
The 2 groove powersteering pulleys are used with a.c. on my k5 I removed the double water pump pulley for a singe and used the 3 groove crank pulley and used two 36in belts on the powersteering pump then the alternator, water pump and in your case smog pump would run on the other groove
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<Brandon> 1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works. ![]() 1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15 81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in 1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096 1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195 |
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