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'71 440 HP Valve Cover Pics?

Posted By: ryangtogtx

'71 440 HP Valve Cover Pics? - 11/09/10 12:59 AM

Can someone post some pics of a set of '71 valve covers. I have a question with regard to a "raised" bump on the driver's side vc and if it was possibly a mid-year change? Here's a pic of the vc in question, and please disregard the C-body exh. manifold. Thanks.

Attached picture 6292050-GTXRS23V1G153641013.jpg
Posted By: kidmopar

Re: '71 440 HP Valve Cover Pics? - 11/09/10 01:10 AM

Quote:

Can someone post some pics of a set of '71 valve covers. I have a question with regard to a "raised" bump on the driver's side vc and if it was possibly a mid-year change? Here's a pic of the vc in question, and please disregard the C-body exh. manifold. Thanks.



I "think" that your left one is incorrect for 1971. There was no raised area (looks like it was for an oil cap?) . They did have the wire tabs (2) , one on back / top of the cover & one on upper part approx. in the middle. My
Posted By: gtx6970

Re: '71 440 HP Valve Cover Pics? - 11/09/10 01:14 AM

https://board.moparts.org/ubbthreads/show...rue#Post6238606
Posted By: 440beep

Re: '71 440 HP Valve Cover Pics? - 11/09/10 01:43 AM


I "think" that your left one is incorrect for 1971. There was no raised area (looks like it was for an oil cap?) . They did have the wire tabs (2) , one on back / top of the cover & one on upper part approx. in the middle. My




those are 1971-72 ones B-body's don't have tabs on them

The ones you are describing are 73's.
Posted By: ryangtogtx

Re: '71 440 HP Valve Cover Pics? - 11/09/10 01:43 AM

Thanks for the posts. I knew I saw a thread about it at one time, but couldn't find it. I seemed to remember that they could go either way with a '71, but this reinforces my "memory".
Posted By: 71X-mark

Re: '71 440 HP Valve Cover Pics? - 11/09/10 01:49 AM

The raised bump in the left valve is correct for '71. Some say this was a mid year change; however, my brother's Sept. '70 Ontario built car has been in the family since new and came with the bump.
Posted By: AZ-Nick

Re: '71 440 HP Valve Cover Pics? - 11/09/10 03:38 AM

Ryan- Here 2 pics, both from different 71 440's, Top one is the original on my Sept LA built GTX, no raised bump.
The second pic is of my original on my Dec Lynch Rd built R/T, with a raised bump.



Posted By: ryangtogtx

Re: '71 440 HP Valve Cover Pics? - 11/09/10 05:14 AM

Thanks Nick. Your pics raise another question. When were the exh. manifold heat shields used?
Posted By: kidmopar

Re: '71 440 HP Valve Cover Pics? - 11/09/10 05:35 AM

Quote:


I "think" that your left one is incorrect for 1971. There was no raised area (looks like it was for an oil cap?) . They did have the wire tabs (2) , one on back / top of the cover & one on upper part approx. in the middle. My




those are 1971-72 ones B-body's don't have tabs on them

The ones you are describing are 73's.



Thank you I stand corrected
Posted By: 72roadrunnergtx

Re: '71 440 HP Valve Cover Pics? - 11/09/10 06:23 AM

Quote:

Thanks Nick. Your pics raise another question. When were the exh. manifold heat shields used?



The pre-heat stove on the left manifold was used on non-N96 4bbl applications, with the standard dual snorkel air cleaner.
Posted By: gtx6970

Re: '71 440 HP Valve Cover Pics? - 11/10/10 02:15 AM

Quote:

Ryan- Here 2 pics, both from different 71 440's, Top one is the original on my Sept LA built GTX, no raised bump.
The second pic is of my original on my Dec Lynch Rd built R/T, with a raised bump.

Nick,
Do you still have either one of these cars?.
if so, is the lower outer fasteners studs with nuts or simple bolts
Posted By: AZ-Nick

Re: '71 440 HP Valve Cover Pics? - 11/10/10 05:11 PM

Quote:

Quote:

Ryan- Here 2 pics, both from different 71 440's, Top one is the original on my Sept LA built GTX, no raised bump.
The second pic is of my original on my Dec Lynch Rd built R/T, with a raised bump.

Nick,
Do you still have either one of these cars?.
if so, is the lower outer fasteners studs with nuts or simple bolts




Yes Bill I still have the top motor, in my GTX. What are you asking me to look at because you have confused me, sorry
Posted By: AZ-Nick

Re: '71 440 HP Valve Cover Pics? - 11/10/10 05:12 PM

Quote:

Quote:

Thanks Nick. Your pics raise another question. When were the exh. manifold heat shields used?



The pre-heat stove on the left manifold was used on non-N96 4bbl applications, with the standard dual snorkel air cleaner.




As always Doug is correct!
Posted By: gtx6970

Re: '71 440 HP Valve Cover Pics? - 11/10/10 08:32 PM

Quote:

in my GTX. What are you asking me to look at because you have confused me, sorry




The lower outer valve cover fasteners, is it studs/nuts OR bolts like the center ?
Posted By: 6bblgt

Re: '71 440 HP Valve Cover Pics? - 11/10/10 08:42 PM

Bolts & no "BUMP" 331-SPD 3/31/71 HAMTRAMCK "survivor" 440+6 '71 Challenger R/T

Attached picture 6295038-barnfindsurvivor71RT.JPG
Posted By: 6bblgt

Re: '71 440 HP Valve Cover Pics? - 11/10/10 08:45 PM

Bolts & "BUMP" junkyard 350hp '71 IMPERIAL 440 - Jefferson assembled 330-SPD Tuesday, 3/30/71

Attached picture 6295044-junkyard71Imperial.JPG
Posted By: gtx6970

Re: '71 440 HP Valve Cover Pics? - 11/10/10 09:00 PM

I saw that picture the other thread.And to be honest, this is the 1st muscle car era vehicles I've ever seen with bolts.
I've worked on some late 70s trucks and fullsize cars with them but never as early as 1971 . so this one is new to me
Posted By: 6bblgt

Re: '71 440 HP Valve Cover Pics? - 11/10/10 09:33 PM

Here are a few more ....

mid-April '71 383 4bbl Challenger R/T - BOLTS -n- BUMP

Attached picture 6295149-415-71383RT.jpg
Posted By: 6bblgt

Re: '71 440 HP Valve Cover Pics? - 11/10/10 09:34 PM

CANADIAN "barn find" Challenger R/T 440+6 DECEMBER-SPD "BUMP"

Attached picture 6295154-barnfind-440-6decSPD.jpg
Posted By: 6bblgt

Re: '71 440 HP Valve Cover Pics? - 11/10/10 09:35 PM

& "BOLTS"

Attached picture 6295160-bolts-n-bump.jpg
Posted By: 440beep

Re: '71 440 HP Valve Cover Pics? - 11/10/10 10:41 PM

6bblgt

you

ty for the pics
Posted By: AZ-Nick

Re: '71 440 HP Valve Cover Pics? - 11/11/10 02:23 AM

Quote:

Quote:

in my GTX. What are you asking me to look at because you have confused me, sorry




The lower outer valve cover fasteners, is it studs/nuts OR bolts like the center ?




My GTX has bolts without bumps and the R/T had bolts with bumps, I have looked at a few original 71's in the past and all were bolts.

Here are 2 more that had Bolts and bumps, both original....

Attached picture 6295589-both2.jpg
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