K10 2.5" ram horns - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LAP · 05-02-2002, 08:02 AM

Can't decide to go with headers or 2.5" ram horns. Can you tell the different on a completely stock 350 between the two?

Also I can't seem to find the right model ram horns. Anybody have them in a 4x4 with A/C? If so, what model or casting number works.

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71 C20 Cheyenne
71 K10 SWB Cheyenne
72 C10 Cheyenne

Mike C · 05-02-2002, 08:30 AM

I replaced my Heddman headers with 64 'vette Rams Horns on the Jimmy. I LOVE mine. They seem to make as much power and better torque. They are quiet and leak free and make changing plugs MUCH easier. At the same time I switched to 2 1/2" exhasut and Dynomax Hemi turbos from the 2 1/4" and Turbo King mufflers that were behind the headers. I was removing the generator mounts so I used two drivers side manifolds since they were the cheapest ones I could find. I have a metal cutting bandsaw that easily lopped the mounts off. I then rounded off the sharp edges and painted them with high temp paint. Mine came from Eckler's Corvette parts and were $82 each. PAW has them for $129 or so and I have heard that Jim Pace and Scoggin Dickey are between $75-85 but I can't confirm that.

------------------
70 GMC 3/4 ton Sierra Grande 402/TH400
72 Jimmy 4WD 4spd 4" & 35's
64 Corvette Coupe
68 Camaro 'vert TPI & TH700
69 Z/28 355 12.6's @110
72 Datsun 240Z-ol' reliable

Blazer1970 · 05-02-2002, 08:34 AM

I have those same manifolds on my Blazer, and I agree with Mike - they work good for a lot of reasons. I did not put my A/C compressor back on after the rebuild, so I am not sure if the part of the bracket that bolts on with the manifold bolts will work with these manifolds or not. I can't be affected too much though since the manifolds are very clost to the stock ram's horns.

------------------
Tim

**Desert Rat** · 05-02-2002, 09:03 AM

Stock motor? SBC -use ramhorns!!!!

misfits · 05-02-2002, 09:39 AM

Are all ramhorns for a 350 the same? What years are better or worse? I have been considering switching my headers to ramhorns but i'm not sure about what years will work. I have a '70 chevy K-10 w/350.

-mike

[This message has been edited by misfits (edited May 02, 2002).]

Mike C · 05-02-2002, 11:10 AM

Any straight dump rams horn will work on a 4x4 small block truck. The 2 1/2" exit corvette manifolds are the most high performance.

**JIMs70GMC** · 05-02-2002, 11:19 AM

I just received my 62 vette ramhorns from www.gmpartsdirect.com, $86 a piece ordered part #s 3797901 and 3814970. Both have mounts that will need to be cut off if you have asessories on both sides(I don't have AC so will definetly cut the left side off and maybe leave the right side mount on). Hope to have mine on by the end of the month.

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1970 GMC K25 Custom
Chesapeake, VA
My 70 GMCor Webshots http://community.webshots.com/user/70gmc

LAP · 05-02-2002, 11:46 AM

Thanks! The mounts were throwing me off but it sees like you can cut them off. I'll order the '62 vette horns and do some hacking. Gotta love this board!

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71 C20 Cheyenne
71 K10 SWB Cheyenne
72 C10 Cheyenne

*Fast68Chevy* · 05-02-2002, 02:59 PM

misfits, the 65-68 ones use a drivee side one that has a boss on the front and two threaded holes that wont work on 69-72 truck engines,
you need to find a 69-72 one, angled back driver side one if is 2wd, straight center dump if is a 4x4 of any year, but 67 68 and older need ot have that boss on the front if you have a 67 68 with original alternator brackets

i have a pics of the 65-68 driver one that you dont want if you have a 69-72 truck, email me and i will show close ups of side and front end holes so you know what not to get unless you have 65-68 truck,.

good luck

Vince M · 05-02-2002, 03:32 PM

The straight dump ramhorns are symetrical so if you can find the side that doesn't have the accesssory mounts you can order two of them and they will work for either side. This would eliminate having to cut off the accessory bracket(s). I think these were only available on the earlier year Corvettes. There are other years that had the 2.5" Ramhorn but had the mentioned accessory brackets. I found a set of good ones used for $80..You could try postiing in the Parts section..maybe someone has some for sale..

------------------
Orlando,FL
72 Chevy 4x4 3/4T CustomCamper w/SB 406

Mike C · 05-02-2002, 05:13 PM

The only ones without the brackets were the 69 and up 2 1/2" rams horns. They are stupid expensive however at over $300 each!!!!!! Buy the cheap one and whack off the bracket if you have a 69-72. If you have an older motor without accessory holes in the heads, get one of each side 63-64 and you should be able to use stock brackets.

------------------
70 GMC 3/4 ton Sierra Grande 402/TH400
72 Jimmy 4WD 4spd 4" & 35's
64 Corvette Coupe
68 Camaro 'vert TPI & TH700
69 Z/28 355 12.6's @110
72 Datsun 240Z-ol' reliable

Vince M · 05-02-2002, 07:43 PM

Hey Mike thanks for the info..I didn't know they were that much..WOW

------------------
Orlando,FL
72 Chevy 4x4 3/4T CustomCamper w/SB 406

*Fast68Chevy* · 05-02-2002, 10:00 PM

65-68 driver side: http://cgi.ebay.com/ebaymotors/ws/eB...tem=1825214707

05-02-2002, 08:02 AM	#1
LAP Registered User Join Date: Jan 2001 Location: Slaughter, La Posts: 153	K10 2.5" ram horns Can't decide to go with headers or 2.5" ram horns. Can you tell the different on a completely stock 350 between the two? Also I can't seem to find the right model ram horns. Anybody have them in a 4x4 with A/C? If so, what model or casting number works. ------------------ 71 C20 Cheyenne 71 K10 SWB Cheyenne 72 C10 Cheyenne __________________ 68 50th Longhorn Custom Camper 396 A/C 25 options 71 C20 Cheyenne 71 K10 SWB Cheyenne 72 C10 Cheyenne ----------------------- Slaughter, La

05-02-2002, 08:30 AM	#2
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	I replaced my Heddman headers with 64 'vette Rams Horns on the Jimmy. I LOVE mine. They seem to make as much power and better torque. They are quiet and leak free and make changing plugs MUCH easier. At the same time I switched to 2 1/2" exhasut and Dynomax Hemi turbos from the 2 1/4" and Turbo King mufflers that were behind the headers. I was removing the generator mounts so I used two drivers side manifolds since they were the cheapest ones I could find. I have a metal cutting bandsaw that easily lopped the mounts off. I then rounded off the sharp edges and painted them with high temp paint. Mine came from Eckler's Corvette parts and were $82 each. PAW has them for $129 or so and I have heard that Jim Pace and Scoggin Dickey are between $75-85 but I can't confirm that. ------------------ 70 GMC 3/4 ton Sierra Grande 402/TH400 72 Jimmy 4WD 4spd 4" & 35's 64 Corvette Coupe 68 Camaro 'vert TPI & TH700 69 Z/28 355 12.6's @110 72 Datsun 240Z-ol' reliable __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-02-2002, 08:34 AM	#3
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	I have those same manifolds on my Blazer, and I agree with Mike - they work good for a lot of reasons. I did not put my A/C compressor back on after the rebuild, so I am not sure if the part of the bracket that bolts on with the manifold bolts will work with these manifolds or not. I can't be affected too much though since the manifolds are very clost to the stock ram's horns. ------------------ Tim __________________ Tim

05-02-2002, 11:10 AM	#6
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	Any straight dump rams horn will work on a 4x4 small block truck. The 2 1/2" exit corvette manifolds are the most high performance. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-02-2002, 11:19 AM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I just received my 62 vette ramhorns from www.gmpartsdirect.com, $86 a piece ordered part #s 3797901 and 3814970. Both have mounts that will need to be cut off if you have asessories on both sides(I don't have AC so will definetly cut the left side off and maybe leave the right side mount on). Hope to have mine on by the end of the month. ------------------ 1970 GMC K25 Custom Chesapeake, VA My 70 GMCor Webshots http://community.webshots.com/user/70gmc __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-02-2002, 09:03 AM	#4
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	Stock motor? SBC -use ramhorns!!!!

05-02-2002, 09:39 AM	#5
misfits Registered User Join Date: Feb 2001 Location: Sturgeon Bay , WI USA Posts: 375	Are all ramhorns for a 350 the same? What years are better or worse? I have been considering switching my headers to ramhorns but i'm not sure about what years will work. I have a '70 chevy K-10 w/350. -mike [This message has been edited by misfits (edited May 02, 2002).]

05-02-2002, 11:46 AM	#8
LAP Registered User Join Date: Jan 2001 Location: Slaughter, La Posts: 153	Thanks! The mounts were throwing me off but it sees like you can cut them off. I'll order the '62 vette horns and do some hacking. Gotta love this board! ------------------ 71 C20 Cheyenne 71 K10 SWB Cheyenne 72 C10 Cheyenne __________________ 68 50th Longhorn Custom Camper 396 A/C 25 options 71 C20 Cheyenne 71 K10 SWB Cheyenne 72 C10 Cheyenne ----------------------- Slaughter, La

05-02-2002, 02:59 PM	#9
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	misfits, the 65-68 ones use a drivee side one that has a boss on the front and two threaded holes that wont work on 69-72 truck engines, you need to find a 69-72 one, angled back driver side one if is 2wd, straight center dump if is a 4x4 of any year, but 67 68 and older need ot have that boss on the front if you have a 67 68 with original alternator brackets i have a pics of the 65-68 driver one that you dont want if you have a 69-72 truck, email me and i will show close ups of side and front end holes so you know what not to get unless you have 65-68 truck,. good luck

05-02-2002, 03:32 PM	#10
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	The straight dump ramhorns are symetrical so if you can find the side that doesn't have the accesssory mounts you can order two of them and they will work for either side. This would eliminate having to cut off the accessory bracket(s). I think these were only available on the earlier year Corvettes. There are other years that had the 2.5" Ramhorn but had the mentioned accessory brackets. I found a set of good ones used for $80..You could try postiing in the Parts section..maybe someone has some for sale.. ------------------ Orlando,FL 72 Chevy 4x4 3/4T CustomCamper w/SB 406 __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements.

05-02-2002, 05:13 PM	#11
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	The only ones without the brackets were the 69 and up 2 1/2" rams horns. They are stupid expensive however at over $300 each!!!!!! Buy the cheap one and whack off the bracket if you have a 69-72. If you have an older motor without accessory holes in the heads, get one of each side 63-64 and you should be able to use stock brackets. ------------------ 70 GMC 3/4 ton Sierra Grande 402/TH400 72 Jimmy 4WD 4spd 4" & 35's 64 Corvette Coupe 68 Camaro 'vert TPI & TH700 69 Z/28 355 12.6's @110 72 Datsun 240Z-ol' reliable __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

05-02-2002, 07:43 PM	#12
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	Hey Mike thanks for the info..I didn't know they were that much..WOW ------------------ Orlando,FL 72 Chevy 4x4 3/4T CustomCamper w/SB 406 __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements.

05-02-2002, 10:00 PM	#13
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	65-68 driver side: http://cgi.ebay.com/ebaymotors/ws/eB...tem=1825214707



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