Serpentine setup - The 1947 - Present Chevrolet & GMC Truck Message Board Network

daveo68 · 09-04-2012, 04:00 PM

I am putting in a 350ci/290 hp with GM Performance serp setup (no A/C). Crank pulley is laying on crossmember when we lower the engine. Why? Using same mount location. This has been a nightmare from the start. Any help appreciated.
Thanks,
Dave

Roninwolf · 09-04-2012, 04:03 PM

Need pics and is it lined up with transmission?

daveo68 · 09-04-2012, 04:45 PM

Just engine for now. The 3 speed manual needs some more work on it. No pictures for now.

daveo68 · 09-04-2012, 08:19 PM

ttt

Roninwolf · 09-04-2012, 09:45 PM

What engine came out of the truck ?

Lee H · 09-04-2012, 09:54 PM

Are you sure you have the angle right without the trans and tans mount? Don't know about your year but in my 72 it fit just fine.
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Roninwolf · 09-04-2012, 10:06 PM

Thats what i was wondering if since he didnt have the trans in if he had it to level and not angled down in the back or wrong engine stands if it didnt have a small block v8 in it before.

daveo68 · 09-04-2012, 11:23 PM

We took a 307 out. I think it might not be sitting right without the transmission. Will try again tomorrow.

daveo68 · 09-05-2012, 06:59 PM

Got the transmission and motor installed. Crank pulley sitting right on top of front crossmember.Still no idea why. Thinking about taking crossmember out and cutting and grinding. This really has got me stumped !!!

Lee H · 09-05-2012, 09:01 PM

I'm using CCP tubular motor mounts. I know others have used stock mounts.
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Roninwolf · 09-05-2012, 10:15 PM

What motor mounts and stands are you using? post pics if you can.

daveo68 · 09-05-2012, 10:29 PM

Quote:

Originally Posted by Roninwolf

What motor mounts and stands are you using? post pics if you can.

I'm using new motor mounts like the original 307 had. Also stock stands, it has one bolt thru the mounts to the block. This has my brother and I totally frustrated. Still trying to find my camera.

daveo68 · 09-06-2012, 12:09 AM

ttt

Roninwolf · 09-06-2012, 12:23 AM

Well need some pics because need to see whats going on. the balancer should be the same size as what was on the 307.

**WIDESIDE72** · 09-06-2012, 12:36 AM

Quote:

Originally Posted by Roninwolf

Well need some pics because need to see whats going on. the balancer should be the same size as what was on the 307.

The 307 uses a 6" diameter balancer and the newer 350 lwp engines use an 8" balancer, but I don't think that that is where the problem is, as I have seen quite a few lwp sbc's installed in 67-72 trucks. Are the stands locate in the regular sbc location?
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Roninwolf · 09-06-2012, 12:48 AM

Ooops i thought the 307 had the 8 inch but anyways it should still clear his crossmember. I've seen lots of 67-72's with newer sbc in them with serpentine setup with no clearance probs too.

daveo68 · 09-06-2012, 12:51 AM

Quote:

Originally Posted by WIDESIDE72

The 307 uses a 6" diameter balancer and the newer 350 lwp engines use an 8" balancer, but I don't think that that is where the problem is, as I have seen quite a few lwp sbc's installed in 67-72 trucks. Are the stands locate in the regular sbc location?
Posted via Mobile Device

Yes they are in the v8 position. It had the original factory 307 in it.

daveo68 · 09-06-2012, 12:59 AM

Quote:

Originally Posted by Roninwolf

Well need some pics because need to see whats going on. the balancer should be the same size as what was on the 307.

Hopefully i'll get some pics in the morning. I'm about to pull what hair i've got left out, trying to figure this mess out.
Thanks,guys

VA72C10 · 09-06-2012, 01:59 AM

You sure you don't have some 6 cyl frame mounts? def need pictures

daveo68 · 09-06-2012, 07:46 AM

Quote:

Originally Posted by VA72C10

You sure you don't have some 6 cyl frame mounts? def need pictures

Unless they were put in the truck in 1968, I don't know.Will get pics later today.

daveo68 · 09-06-2012, 09:03 AM

Here are some pics motor mounts and pulley on frame.
1 Pulley on frame
2.Passenger side mount
4 Driver side mount
5.Passenger side mount

Roninwolf · 09-06-2012, 09:36 AM

That crossmember is bent bad!!!

bonnieclyde100 · 09-06-2012, 09:50 AM

the cross member is bent up and should be bent down is it in upside down was it removed at one time or another?

daveo68 · 09-06-2012, 09:55 AM

Still has rivets in so I don't think it has ever been out.Going to see if we can straighten it out.

Billett · 09-06-2012, 10:09 AM

Looks like I'm going to need a new crossmember too then

Mine is pretty bent up. I was hoping once I saw your pics that they were all like that haha. I'll see if I can grab a pic of mine later tonight. I have a later model sbc in as well and I think the PO bent it down to fit it in.

09-04-2012, 04:00 PM	#1
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Serpentine setup I am putting in a 350ci/290 hp with GM Performance serp setup (no A/C). Crank pulley is laying on crossmember when we lower the engine. Why? Using same mount location. This has been a nightmare from the start. Any help appreciated. Thanks, Dave __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America Last edited by daveo68; 09-04-2012 at 06:35 PM. Reason: spelling

09-04-2012, 04:03 PM	#2
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup Need pics and is it lined up with transmission? __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-04-2012, 04:45 PM	#3
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup Just engine for now. The 3 speed manual needs some more work on it. No pictures for now. __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America

09-04-2012, 08:19 PM	#4
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup ttt __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America

09-04-2012, 09:45 PM	#5
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup What engine came out of the truck ? __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-04-2012, 09:54 PM	#6
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,142	Re: Serpentine setup Are you sure you have the angle right without the trans and tans mount? Don't know about your year but in my 72 it fit just fine. Posted via Mobile Device __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703

09-04-2012, 10:06 PM	#7
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup Thats what i was wondering if since he didnt have the trans in if he had it to level and not angled down in the back or wrong engine stands if it didnt have a small block v8 in it before. __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-04-2012, 11:23 PM	#8
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup We took a 307 out. I think it might not be sitting right without the transmission. Will try again tomorrow. __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America

09-05-2012, 06:59 PM	#9
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup Got the transmission and motor installed. Crank pulley sitting right on top of front crossmember.Still no idea why. Thinking about taking crossmember out and cutting and grinding. This really has got me stumped !!! __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America

09-05-2012, 09:01 PM	#10
Lee H Registered User Join Date: Jun 2010 Location: Upland Ca Posts: 4,142	Re: Serpentine setup I'm using CCP tubular motor mounts. I know others have used stock mounts. Posted via Mobile Device __________________ 1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703

09-05-2012, 10:15 PM	#11
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup What motor mounts and stands are you using? post pics if you can. __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-06-2012, 12:09 AM	#13
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup ttt __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America

09-06-2012, 12:23 AM	#14
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup Well need some pics because need to see whats going on. the balancer should be the same size as what was on the 307. __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-06-2012, 12:48 AM	#16
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup Ooops i thought the 307 had the 8 inch but anyways it should still clear his crossmember. I've seen lots of 67-72's with newer sbc in them with serpentine setup with no clearance probs too. __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-06-2012, 01:59 AM	#19
VA72C10 VA72C10 Join Date: Mar 2008 Location: Midlothian, VA Posts: 25,269	Re: Serpentine setup You sure you don't have some 6 cyl frame mounts? def need pictures __________________ Looking for a 67-72 swb or blazer project in or around VA.



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09-06-2012, 09:03 AM	#21
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup Here are some pics motor mounts and pulley on frame. 1 Pulley on frame 2.Passenger side mount 4 Driver side mount 5.Passenger side mount Attached Images __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America Last edited by daveo68; 09-06-2012 at 09:12 AM.

09-06-2012, 09:36 AM	#22
Roninwolf Registered User Join Date: May 2012 Location: Cullman Alabama Posts: 114	Re: Serpentine setup That crossmember is bent bad!!! __________________ My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=531265 72 Cheyenne Super 90 Z71 S.B. 434 C.I. Stroker 78 Camaro Z28 (gave to wife she is restoring it)

09-06-2012, 09:50 AM	#23
bonnieclyde100 Registered User Join Date: Jan 2012 Location: Henderson,TX Posts: 336	Re: Serpentine setup the cross member is bent up and should be bent down is it in upside down was it removed at one time or another?

09-06-2012, 09:55 AM	#24
daveo68 Senior Member Join Date: Dec 2001 Location: Lexington,NC Posts: 503	Re: Serpentine setup Still has rivets in so I don't think it has ever been out.Going to see if we can straighten it out. __________________ 68 C-10 Custom LWB 307 V8 Lexington,NC davideowens@lexcominc.net God Bless America

09-06-2012, 10:09 AM	#25
Billett Registered User Join Date: Jun 2012 Location: Pittsgrove, NJ Posts: 1,502	Re: Serpentine setup Looks like I'm going to need a new crossmember too then Mine is pretty bent up. I was hoping once I saw your pics that they were all like that haha. I'll see if I can grab a pic of mine later tonight. I have a later model sbc in as well and I think the PO bent it down to fit it in. __________________ Will 1968 C10 - Project Texa Go 6.0/4L80e 2003 Mitsubishi Lancer Evolution 2002 Ford Excursion 7.3L 2024 Toyota Sienna

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