Cowl Scoop - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Orence1 · 12-22-2005, 05:59 PM

I am intersted in purchasing and installing a metal cowl scoop from The Speed Center. The installation looks pretty straight forward. My concern lies with the need to trim the rear of the unit. The scoop is 53" long and the hood on my 72 is approximately 44" from rear lip to front roll. Have any of you used this unit and have any advice?
Thanks,
Larry

OJOE · 12-22-2005, 07:22 PM

after you put all the work and money into this project i think you would be better off to just buy a cowl hood. good luck

Farm Boy · 12-22-2005, 09:39 PM

Orence1-
Is the truck in your avitar yours? If so, post some more pics. I am leaning toward a black truck and would like to see some more. Where is Bothel, WA at. I am about 6hrs from Spokane.

*FormerMember* · 12-22-2005, 09:57 PM

I've actually been thinking I may do a ram air hood, simliar to an early 70's Firechicken.

Orence1 · 12-28-2005, 11:17 AM

The choice of a cowl scoop vs a new cowl hood came down to two factors:
Money- The hoods are nearly $400 not including shipping. The scoop is $175 with shipping.
Fit - My current hood is in excellent condition and fits perfectly. I know that at times new sheetmetal can be a pain to fit properly. One of the options they offer is an epoxy adhesive that will attach the scoop rather than welding. Being somewhat concerned about warping I did some research on metal adhesives. I am pretty confident that the adhesive will work well and negates the risk of heat damage. I'll post some pictures when done. Thanks for the replies.
Larry

*FormerMember* · 12-28-2005, 11:25 AM

Awesome, I look forward to seeing your results.

chevyguy_72 · 12-28-2005, 11:34 AM

do you have a link to the scoop you are ordering?

70c10 · 12-28-2005, 12:07 PM

Orence1- are you planning to just glue it to the top or cutout a hole and mount from underneath?. I had a fiberglass scoop riveted and smoothed into my last truck and it didn't last long. It looked great for 3 months. The problem was the body filler started to crack where it was feathered into the existing hood. This was due to vibration and closing the hood. Maybe if you can weld the edge somehow and grind it down to minimize filler it would last. My buddy did his GTO 5 years ago and it still looks good. Good luck.

matthufham · 12-28-2005, 12:12 PM

the hood flexes so much, anything bonded to it will crack unless it's metal on metal, or fiberglass on fiberglass.

crazy longhorn · 12-28-2005, 01:37 PM

Quote:

Originally Posted by chevyguy_72

do you have a link to the scoop you are ordering?

http://www.thespeedcenter.net/SpeedC...meFrameSet.htm

Orence1 · 12-28-2005, 07:17 PM

Crazy,
Thanks for posting the URL. That is the company I am planning on purchasing from. You guys are right on with concerns about cracking. My original thought was to do a fiberglass scoop as they are fairly inexpensive. After some research however, I discovered exactly what you described. Lots of problems with cracks. It appears that the lip will need minimal filler to blend it to the hood and the tech at The Speed Center indicates that they have not had reports of cracks. I am planning on painting this summer so will install the scoop and keep the hood in primer and check for cracks before the paint process. Will keep you informed. Happy New Year.
Larry

crazy longhorn · 12-28-2005, 07:54 PM

Quote:

Originally Posted by Orence1

Crazy,
Thanks for posting the URL. That is the company I am planning on purchasing from. You guys are right on with concerns about cracking. My original thought was to do a fiberglass scoop as they are fairly inexpensive. After some research however, I discovered exactly what you described. Lots of problems with cracks. It appears that the lip will need minimal filler to blend it to the hood and the tech at The Speed Center indicates that they have not had reports of cracks. I am planning on painting this summer so will install the scoop and keep the hood in primer and check for cracks before the paint process. Will keep you informed. Happy New Year.
Larry

I am no bodyman, just a good old backyard "jack". I have done a little tin work, & do agree with the majority.....that hood will be a PITA to weld a scoop on, or glue & fill! My thoughts are , that if you can cut the hood to pull the scoop up from the BOTTOM side,& button weld it to the hood. then add a little good paintable seam sealer, rather than filler.....it may hold up better. I havent tryed this, so bear in mind that it is just a crazy thought, from a crazy old man

L

leadfoot067 · 12-28-2005, 08:26 PM

larry, i have a 4 1/2" fiberglass cowl hood at home,it isnt currently attached to the truck,if ya wanna see how it looks
shane

matthufham · 12-28-2005, 08:35 PM

Here’s an idea I just thought of:
Fiberglass scoop with a 1/2" - 1" lip that is hidden underneath it that runs front to back, and across the front. Drill holes in that lip, and in the hood, and rivet it on. Drill a drain hole in the hood behind the front of the scoop for a water drain, and you can get fancy with that so water drains out somewhere else other than your engine if you want. Then if you want it water proof, seal the base with silicon, seam sealer, or gasket material. If you want it functional, cut the hood and the rear of the scoop.

That’s just how I would do it if I didn’t want any bonding material to crack. Just don’t bond it in other words.

cflvulcan · 12-29-2005, 02:05 AM

i molded a 3" cowl scoop on my hood put alot of time into it then found out later i had to trim about an 1" off the back cause it hit the cowl panel when it opened. but still was well worth it cause i didnt have to spend $699 for the hood. all those hoods i seen in person, they dont line up good. i figured it be good to just mold one on cause i know the hood already fits and lines up good. later...

tom

Orence1 · 12-29-2005, 10:49 PM

Shane,
Thanks for the offer. Do you get anywhere near Kent during the week? Have a board friend that lives there and we swap labor often.
Larry

weasel29gm · 12-29-2005, 11:21 PM

A buddy used one from them on a '64 Impala. Looked great and his body guy done a excellant job. I thought he got a cowl hood. I agee cheaper than a hood. Try it!!!

leadfoot067 · 12-29-2005, 11:48 PM

i was in kent today...but im always in my work van if im up there so the hood wouldnt be with me...

matthufham · 12-30-2005, 12:11 AM

ebay truck, example of cracking body filler. i can go down and take pics of my friends 4th gen camaro with "ram air" cracking too if i felt like it.

FRENCHBLUE72 · 12-30-2005, 01:32 AM

I would use the metal adhesive but how would you go about fitting the scoop to the hoods body line???

cflvulcan · 12-30-2005, 02:52 AM

heres a quick shot of my hood. pic quality sucks but ya get the idea. and as i stated above i had to cut some of the back off. and for the body line i just blended it together on the edge in the front. i wish i had a better pic so its more visible but it looks great.

Orence1 · 12-30-2005, 11:10 AM

Tom,
Can you provide a bit more detail on how you formed the scoops center "raised rib" to match the same rib on the hood? I have some ideas on what I was going to do and would be interested in how you matched yours up. Looks great by the way. My thought on the metal scoop was to cut a notch on the front lip to match the hood line and weld the notch edges. Thanks for the input.
Larry

12-22-2005, 05:59 PM	#1
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Cowl Scoop I am intersted in purchasing and installing a metal cowl scoop from The Speed Center. The installation looks pretty straight forward. My concern lies with the need to trim the rear of the unit. The scoop is 53" long and the hood on my 72 is approximately 44" from rear lip to front roll. Have any of you used this unit and have any advice? Thanks, Larry

12-22-2005, 07:22 PM	#2
OJOE Crew Cut Join Date: Dec 2005 Location: MONTGOMERY,AL Posts: 757	Re: Cowl Scoop after you put all the work and money into this project i think you would be better off to just buy a cowl hood. good luck __________________ 85 SWB 1/2 TON CREWCAB/5.3 03 CHEV 3500 DURAMAX CREW CAB 85 CHEV SWB/TPI 06 CHEV TAHOE (WIFES) 30 MODEL A HOT ROD 07 HARLEY DAVIDSON BAGGER 09 STREET GLIDE AN D A LOT MORE JUNK

12-22-2005, 09:39 PM	#3
Farm Boy Registered User Join Date: Mar 2000 Location: Alder, MT 59710 Posts: 488	Re: Cowl Scoop Orence1- Is the truck in your avitar yours? If so, post some more pics. I am leaning toward a black truck and would like to see some more. Where is Bothel, WA at. I am about 6hrs from Spokane. __________________ WWS!!!!! 1971 Custom C/20 1992 Chevrolet Z71 1993 Jeep Grand Cherokee 1984 Chevrolet Celebrity (All old but long ago paid for)

12-22-2005, 09:57 PM	#4
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Cowl Scoop I've actually been thinking I may do a ram air hood, simliar to an early 70's Firechicken.

12-28-2005, 11:17 AM	#5
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Re: Cowl Scoop The choice of a cowl scoop vs a new cowl hood came down to two factors: Money- The hoods are nearly $400 not including shipping. The scoop is $175 with shipping. Fit - My current hood is in excellent condition and fits perfectly. I know that at times new sheetmetal can be a pain to fit properly. One of the options they offer is an epoxy adhesive that will attach the scoop rather than welding. Being somewhat concerned about warping I did some research on metal adhesives. I am pretty confident that the adhesive will work well and negates the risk of heat damage. I'll post some pictures when done. Thanks for the replies. Larry

12-28-2005, 11:25 AM	#6
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Cowl Scoop Awesome, I look forward to seeing your results.

12-28-2005, 11:34 AM	#7
chevyguy_72 Vintage Evil Join Date: Aug 2005 Location: Hastings, Nebraska Posts: 956	Re: Cowl Scoop do you have a link to the scoop you are ordering?

12-28-2005, 12:07 PM	#8
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: Cowl Scoop Orence1- are you planning to just glue it to the top or cutout a hole and mount from underneath?. I had a fiberglass scoop riveted and smoothed into my last truck and it didn't last long. It looked great for 3 months. The problem was the body filler started to crack where it was feathered into the existing hood. This was due to vibration and closing the hood. Maybe if you can weld the edge somehow and grind it down to minimize filler it would last. My buddy did his GTO 5 years ago and it still looks good. Good luck. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

12-28-2005, 12:12 PM	#9
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: Cowl Scoop the hood flexes so much, anything bonded to it will crack unless it's metal on metal, or fiberglass on fiberglass.

12-28-2005, 07:17 PM	#11
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Re: Cowl Scoop Crazy, Thanks for posting the URL. That is the company I am planning on purchasing from. You guys are right on with concerns about cracking. My original thought was to do a fiberglass scoop as they are fairly inexpensive. After some research however, I discovered exactly what you described. Lots of problems with cracks. It appears that the lip will need minimal filler to blend it to the hood and the tech at The Speed Center indicates that they have not had reports of cracks. I am planning on painting this summer so will install the scoop and keep the hood in primer and check for cracks before the paint process. Will keep you informed. Happy New Year. Larry

12-28-2005, 08:26 PM	#13
leadfoot067 horsepower junkie Join Date: Aug 2003 Location: graham, washington Posts: 326	Re: Cowl Scoop larry, i have a 4 1/2" fiberglass cowl hood at home,it isnt currently attached to the truck,if ya wanna see how it looks shane __________________ 67 short wide box,350/700r4/3.73posi 71 olds cutlass "S" mom bought new..12.30s@113MPH

12-28-2005, 08:35 PM	#14
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: Cowl Scoop Here’s an idea I just thought of: Fiberglass scoop with a 1/2" - 1" lip that is hidden underneath it that runs front to back, and across the front. Drill holes in that lip, and in the hood, and rivet it on. Drill a drain hole in the hood behind the front of the scoop for a water drain, and you can get fancy with that so water drains out somewhere else other than your engine if you want. Then if you want it water proof, seal the base with silicon, seam sealer, or gasket material. If you want it functional, cut the hood and the rear of the scoop. That’s just how I would do it if I didn’t want any bonding material to crack. Just don’t bond it in other words.

12-29-2005, 02:05 AM	#15
cflvulcan Registered User Join Date: Sep 2005 Location: Utica, NY Posts: 315	Re: Cowl Scoop i molded a 3" cowl scoop on my hood put alot of time into it then found out later i had to trim about an 1" off the back cause it hit the cowl panel when it opened. but still was well worth it cause i didnt have to spend $699 for the hood. all those hoods i seen in person, they dont line up good. i figured it be good to just mold one on cause i know the hood already fits and lines up good. later... tom

12-29-2005, 10:49 PM	#16
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Re: Cowl Scoop Shane, Thanks for the offer. Do you get anywhere near Kent during the week? Have a board friend that lives there and we swap labor often. Larry

12-29-2005, 11:21 PM	#17
weasel29gm SLOW BUT SURE,BUT CLOSER Join Date: Feb 2002 Location: eleanor wv usa Posts: 3,096	Re: Cowl Scoop A buddy used one from them on a '64 Impala. Looked great and his body guy done a excellant job. I thought he got a cowl hood. I agee cheaper than a hood. Try it!!! __________________ 69 C-10, OWNED 38YRS... 350 over 30, 350 Turbo, 3:73 Posi P/S, P/B Black with red and black int. ''LOVE THESE OLD ''TRUCKS.......



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12-29-2005, 11:48 PM	#18
leadfoot067 horsepower junkie Join Date: Aug 2003 Location: graham, washington Posts: 326	Re: Cowl Scoop i was in kent today...but im always in my work van if im up there so the hood wouldnt be with me... __________________ 67 short wide box,350/700r4/3.73posi 71 olds cutlass "S" mom bought new..12.30s@113MPH

12-30-2005, 12:11 AM	#19
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	Re: Cowl Scoop ebay truck, example of cracking body filler. i can go down and take pics of my friends 4th gen camaro with "ram air" cracking too if i felt like it. Attached Images Last edited by matthufham; 12-30-2005 at 12:12 AM.

12-30-2005, 01:32 AM	#20
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Re: Cowl Scoop I would use the metal adhesive but how would you go about fitting the scoop to the hoods body line??? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

12-30-2005, 02:52 AM	#21
cflvulcan Registered User Join Date: Sep 2005 Location: Utica, NY Posts: 315	Re: Cowl Scoop heres a quick shot of my hood. pic quality sucks but ya get the idea. and as i stated above i had to cut some of the back off. and for the body line i just blended it together on the edge in the front. i wish i had a better pic so its more visible but it looks great.

12-30-2005, 11:10 AM	#22
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Re: Cowl Scoop Tom, Can you provide a bit more detail on how you formed the scoops center "raised rib" to match the same rib on the hood? I have some ideas on what I was going to do and would be interested in how you matched yours up. Looks great by the way. My thought on the metal scoop was to cut a notch on the front lip to match the hood line and weld the notch edges. Thanks for the input. Larry

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