Can anyone tell me what the heck this stupid bump is? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gottwake · 10-24-2008, 09:06 PM

I want to box in my frame but do not know what this does or if I can shave it. Anyone know? Thanks.

Longhorn Man · 10-24-2008, 09:23 PM

that's clearance for the fuel pump on the big blocks. No clue why they raised it instead of trimming it.

gottwake · 10-24-2008, 09:26 PM

So if I dont run a big block I can "square-it-off"?

Longhorn Man · 10-24-2008, 09:33 PM

you can bend it, trim it... what ever you want. It isn't doing anything in all reality, big block or not.

68 short step · 10-24-2008, 10:08 PM

ive always thought it was clearance for the oil filter on the inline 6's

is it a dual purpose or was it just a Coincidence?

Longhorn Man · 10-24-2008, 10:16 PM

it showed up in 68, the same year the big block did ... and 67s had the inline (both sizes) and no flair in that location.
Plus... if you look real hard in this photo...

68 short step · 10-24-2008, 10:30 PM

ahhhh, i learn somethig everyday......

gottwake · 10-24-2008, 11:29 PM

i can see the clearance issue. So, is this a pic of a big block? And, is a small block going to have this issue?

Longhorn Man · 10-24-2008, 11:49 PM

yes, that is a big block, and no, there is plenty of room on a small block.

gottwake · 10-24-2008, 11:59 PM

Very cool...I'm off cutting and welding. thanks!

Heavy Evy · 10-25-2008, 12:19 AM

You do learn somthing everyday on this board. I thought that lip ment my frame was bent on my 71 and now I know its not. Hooray!

**NGN** · 10-25-2008, 01:03 AM

i'm might be wrong but , i think it's bent up for the clearance of the fuel pump as said and still keep's the frame strong instead of a cut out . i'll have to check out my 67 now , way cool ... thanks for the new info

Dowdy · 10-25-2008, 09:26 AM

NGN, you are correct. It is a way to create clearance and add vertical stiffness to the frame in that location. Boxing the frame will accomplish the same thing, as long as there is no interference.

**special-K** · 10-25-2008, 09:47 AM

Yeah,I wouldn`t just go trimming that and leaving it.That flare is still giving alot of strength on the verticle plain.But,boxing it will make it stronger yet.

I`m curious.Why are you boxing your frame?

gottwake · 10-25-2008, 10:46 AM

Im just going to cut it and box it in. I jus have to figure out how to get to the lower cross member bolts now.

Shak · 10-25-2008, 10:59 AM

My 67, which came with the inline six has the flair as well.

Brad · 10-28-2008, 03:42 AM

That bend is on my '67 and is for the oil filter on a 6!

Longhorn Man · 10-28-2008, 05:26 AM

son of a...
Well....thanks guys.

Stock72c10 · 10-28-2008, 09:14 AM

I think it might be cancer. If it isn't in the way I would leave it alone.

67ChevyRedneck · 10-28-2008, 09:37 AM

Sorry man, but my '67 has it too and it is definitely a 67 frame because it doesn't have the stupid notch for the power steering...

The pic sucks, but it's there.

whatnow123 · 10-28-2008, 10:30 AM

My 67 frame has the "fin" as well. Now all we need is the Jimmy Buffet song.. "fins to the left, fins to the right"

68Lowrider · 10-28-2008, 10:47 AM

M y 67 had it and it was a inline 6 and the long filter fit nicely my current 68 big block model has it , the fuel pump is lost in that area .....

**DANTIP** · 10-28-2008, 11:18 AM

The 6 oil filter does look like the original reason for the frame tweek. I'll be dipped in ....

67ChevyRedneck · 10-28-2008, 11:38 AM

I guess the question now is, does the 60-66 frame (which I understand to be very similar to the 67-72) have the same notch, presumably for the oil filter change?

Edit:

After a bit of searching, it appears the 60-66 trucks have the notch as well, it looks a little different, but it IS there. Borrowed this from ChiefRokca's build thread:

Another angle:

**Palf70Step** · 10-28-2008, 12:14 PM

It probably didn't need the same notch as they didn't use the same 6-cylinder. The 235 CI 6 doesn't have the oil filter positioned in the same location. Also, if I remember right, they didn't use twist on filters then either. We still used the toilet-paper canister filters.

10-24-2008, 09:06 PM	#1
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Can anyone tell me what the heck this stupid bump is? I want to box in my frame but do not know what this does or if I can shave it. Anyone know? Thanks. Attached Images __________________ Blazer Project

10-24-2008, 09:23 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone tell me what the heck this stupid bump is? that's clearance for the fuel pump on the big blocks. No clue why they raised it instead of trimming it.

10-24-2008, 09:26 PM	#3
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Re: Can anyone tell me what the heck this stupid bump is? So if I dont run a big block I can "square-it-off"? __________________ Blazer Project

10-24-2008, 09:33 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone tell me what the heck this stupid bump is? you can bend it, trim it... what ever you want. It isn't doing anything in all reality, big block or not.

10-24-2008, 10:08 PM	#5
68 short step Senior Member Join Date: Aug 2005 Location: tulsa OK Posts: 3,070	Re: Can anyone tell me what the heck this stupid bump is? ive always thought it was clearance for the oil filter on the inline 6's is it a dual purpose or was it just a Coincidence? Last edited by 68 short step; 10-24-2008 at 10:28 PM.

10-24-2008, 10:16 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone tell me what the heck this stupid bump is? it showed up in 68, the same year the big block did ... and 67s had the inline (both sizes) and no flair in that location. Plus... if you look real hard in this photo...

10-24-2008, 10:30 PM	#7
68 short step Senior Member Join Date: Aug 2005 Location: tulsa OK Posts: 3,070	Re: Can anyone tell me what the heck this stupid bump is? ahhhh, i learn somethig everyday......

10-24-2008, 11:29 PM	#8
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Re: Can anyone tell me what the heck this stupid bump is? i can see the clearance issue. So, is this a pic of a big block? And, is a small block going to have this issue? __________________ Blazer Project

10-24-2008, 11:49 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone tell me what the heck this stupid bump is? yes, that is a big block, and no, there is plenty of room on a small block.

10-24-2008, 11:59 PM	#10
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Re: Can anyone tell me what the heck this stupid bump is? Very cool...I'm off cutting and welding. thanks! __________________ Blazer Project

10-25-2008, 12:19 AM	#11
Heavy Evy born to lose Join Date: Sep 2008 Location: Salt Lake City, Utah Posts: 842	Re: Can anyone tell me what the heck this stupid bump is? You do learn somthing everyday on this board. I thought that lip ment my frame was bent on my 71 and now I know its not. Hooray! __________________ _____________________ '67 Chevy Belair Wagon 283 Powerglide '68 Chevy II Nova 2 door 350 TH400 Sold!! '71 Chevy C20 350 TH350 '71 Chevy C10 Burb 350 TH350 stolen totalled gone.... Burb Build http://67-72chevytrucks.com/vboard/s...d.php?t=475155 Nova Build http://67-72chevytrucks.com/vboard/s...d.php?t=498979 Wagon Build http://67-72chevytrucks.com/vboard/s...d.php?t=543052 Not giving a truck.

10-25-2008, 01:03 AM	#12
NGN Registered User Join Date: Nov 2001 Location: Old Bridge,NJ Posts: 824	Re: Can anyone tell me what the heck this stupid bump is? i'm might be wrong but , i think it's bent up for the clearance of the fuel pump as said and still keep's the frame strong instead of a cut out . i'll have to check out my 67 now , way cool ... thanks for the new info

10-25-2008, 09:26 AM	#13
Dowdy Registered User Join Date: Dec 2006 Location: Oviedo, Florida Posts: 11	Re: Can anyone tell me what the heck this stupid bump is? NGN, you are correct. It is a way to create clearance and add vertical stiffness to the frame in that location. Boxing the frame will accomplish the same thing, as long as there is no interference.

10-25-2008, 09:47 AM	#14
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,862	Re: Can anyone tell me what the heck this stupid bump is? Yeah,I wouldn`t just go trimming that and leaving it.That flare is still giving alot of strength on the verticle plain.But,boxing it will make it stronger yet. I`m curious.Why are you boxing your frame? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-25-2008, 10:46 AM	#15
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Re: Can anyone tell me what the heck this stupid bump is? Im just going to cut it and box it in. I jus have to figure out how to get to the lower cross member bolts now. __________________ Blazer Project



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10-25-2008, 10:59 AM	#16
Shak Registered User Join Date: May 2007 Location: Spring Valley, CA Posts: 49	Re: Can anyone tell me what the heck this stupid bump is? My 67, which came with the inline six has the flair as well.

10-28-2008, 03:42 AM	#17
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,673	Re: Can anyone tell me what the heck this stupid bump is? That bend is on my '67 and is for the oil filter on a 6! Attached Images __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten... Last edited by Brad; 10-28-2008 at 03:44 AM.

10-28-2008, 05:26 AM	#18
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Can anyone tell me what the heck this stupid bump is? son of a... Well....thanks guys.

10-28-2008, 09:14 AM	#19
Stock72c10 classic=of recognized value Join Date: Sep 2008 Location: Wichita, KS Posts: 317	Re: Can anyone tell me what the heck this stupid bump is? I think it might be cancer. If it isn't in the way I would leave it alone.

10-28-2008, 09:37 AM	#20
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Can anyone tell me what the heck this stupid bump is? Sorry man, but my '67 has it too and it is definitely a 67 frame because it doesn't have the stupid notch for the power steering... The pic sucks, but it's there. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

10-28-2008, 10:30 AM	#21
whatnow123 Registered User Join Date: Oct 2006 Location: Arizona Posts: 835	Re: Can anyone tell me what the heck this stupid bump is? My 67 frame has the "fin" as well. Now all we need is the Jimmy Buffet song.. "fins to the left, fins to the right" __________________ 67 Short Step, 355, 700R 4.11 posi rear, 4/6 drop Discs on all 4 corners. Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=219094

10-28-2008, 10:47 AM	#22
68Lowrider Registered User Join Date: Aug 2008 Location: Parker Dam California Posts: 71	Re: Can anyone tell me what the heck this stupid bump is? M y 67 had it and it was a inline 6 and the long filter fit nicely my current 68 big block model has it , the fuel pump is lost in that area .....

10-28-2008, 11:18 AM	#23
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,882	Re: Can anyone tell me what the heck this stupid bump is? The 6 oil filter does look like the original reason for the frame tweek. I'll be dipped in ....

10-28-2008, 11:38 AM	#24
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Can anyone tell me what the heck this stupid bump is? I guess the question now is, does the 60-66 frame (which I understand to be very similar to the 67-72) have the same notch, presumably for the oil filter change? Edit: After a bit of searching, it appears the 60-66 trucks have the notch as well, it looks a little different, but it IS there. Borrowed this from ChiefRokca's build thread: Another angle: __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 10-28-2008 at 11:48 AM.

10-28-2008, 12:14 PM	#25
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 46,762	Re: Can anyone tell me what the heck this stupid bump is? It probably didn't need the same notch as they didn't use the same 6-cylinder. The 235 CI 6 doesn't have the oil filter positioned in the same location. Also, if I remember right, they didn't use twist on filters then either. We still used the toilet-paper canister filters. Attached Images __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! Last edited by Palf70Step; 10-28-2008 at 12:15 PM.

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