which pulleys for 71 big block? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

beautimus · 05-01-2016, 07:45 PM

can anyone tell me what crank and water pump pulleys i need for a 71 big block c-10. it has the 402 with power steering and air. i am about ready to crank my engine for the first time and i need to find the correct pulleys. also it is an automatic transmission

thanks, Tony

beautimus · 05-03-2016, 12:26 AM

ok thanks i found it.

davepl · 05-03-2016, 12:41 PM

Why not post it so that if someone else ever has the same question they'll find it with search rather than say

"What happened to this guy who knew the answer 7 years ago, is he still around?"

beautimus · 05-04-2016, 01:08 AM

ok, i found this info on another thread and can't find it now, but this is for a 72.
72 402 auto with air and power steering, and i believe to be correct for 71 also, but i can not confirm that.

3995648 2 groove water pump
38744145 2 groove inner crank pulley
3925525 1 groove outer crank and power steering pump

it may not be correct for a 71 but maybe someone that knows will post.

05-01-2016, 07:45 PM	#1
beautimus Registered User Join Date: Mar 2002 Location: woodstock, alabama, usa Posts: 938	which pulleys for 71 big block? can anyone tell me what crank and water pump pulleys i need for a 71 big block c-10. it has the 402 with power steering and air. i am about ready to crank my engine for the first time and i need to find the correct pulleys. also it is an automatic transmission thanks, Tony __________________ i survived cancer and kidney stones, but my kids are killing me. Last edited by beautimus; 05-01-2016 at 07:46 PM. Reason: forgot the last spec.

05-03-2016, 12:26 AM	#2
beautimus Registered User Join Date: Mar 2002 Location: woodstock, alabama, usa Posts: 938	Re: which pulleys for 71 big block? ok thanks i found it. __________________ i survived cancer and kidney stones, but my kids are killing me.

05-03-2016, 12:41 PM	#3
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: which pulleys for 71 big block? Why not post it so that if someone else ever has the same question they'll find it with search rather than say "What happened to this guy who knew the answer 7 years ago, is he still around?" __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

05-04-2016, 01:08 AM	#4
beautimus Registered User Join Date: Mar 2002 Location: woodstock, alabama, usa Posts: 938	Re: which pulleys for 71 big block? ok, i found this info on another thread and can't find it now, but this is for a 72. 72 402 auto with air and power steering, and i believe to be correct for 71 also, but i can not confirm that. 3995648 2 groove water pump 38744145 2 groove inner crank pulley 3925525 1 groove outer crank and power steering pump it may not be correct for a 71 but maybe someone that knows will post. __________________ i survived cancer and kidney stones, but my kids are killing me.

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