exhaust manifold choices???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tommie · 03-24-2003, 02:59 PM

I know that most people are using either headers or ramhorn manifolds. What other choices are out there?

by the way im talking about for small blocks.

the only thing I don't like about the ramhorns is the spark plug wire routing.

I was thinking about using some newer manifolds, the ones that drop down then run across. like on 88 up chevy trucks.

so that i could run my spark plug wires over the valve covers and drop them down to the exhaust manifolds and not worry about burning them.

any suggestions or input appreciated.

thanks
tommie

Blue68 · 03-24-2003, 05:53 PM

I suggest grabbing a pair and finding out. I've always wondered how they would work out as well. Just never looked to see if the rear dump would interfere with shift linkage or anything.

Longhorn Man · 03-25-2003, 12:45 AM

I do not speak from experinace, but someone said the newer ones won't work.
you can route the wires over the ram horns, just get some looms that bolt to the valve covers.

GreenMystChevy · 03-25-2003, 02:28 AM

I've got some from a '69 Nova. They drop down and then back towards the firewall, then turn down to the exhaust. (If that made sense.) I'd have to look at them again tomorrow but that sounds about like what you are looking for.

gr8scott51 · 03-25-2003, 10:48 PM

I solved the hot ram horn problem by having the manifolds cermachromed (ceramic coating looks like chrome). That brought the exterior temps down. I decided to go with the rams to maintain clearance for my clutch linkage. Just a note: I used two right side ram manifolds to match the exhaust flows for both sides, 2-1/4" to the Flowmasters, 2-1/2" from there back. Nice tone.

Blue Beard · 03-25-2003, 11:14 PM

Tried the newer style manifolds only to find they hit the upper A arms...........

You could go with the ram horns with the 45 degree angle back and use plug wires with the straight boot..........they go out far enough not to be a problem....

tommie · 03-25-2003, 11:31 PM

hit the upper a arms?

i would of thought that the only problem would be shift/clutch linkage.

hmmm.

i was just wondering if anyone had the newer manifolds, guess everyone is using the ramhorns

thanks
tommie

Hooter · 03-26-2003, 02:33 AM

The newer manifolds also dont clear the dipstick on older motors

03-24-2003, 02:59 PM	#1
tommie 97' Tahoe 2dr/2wd Join Date: Jul 2002 Location: Huffman,TX Posts: 1,168	exhaust manifold choices???? I know that most people are using either headers or ramhorn manifolds. What other choices are out there? by the way im talking about for small blocks. the only thing I don't like about the ramhorns is the spark plug wire routing. I was thinking about using some newer manifolds, the ones that drop down then run across. like on 88 up chevy trucks. so that i could run my spark plug wires over the valve covers and drop them down to the exhaust manifolds and not worry about burning them. any suggestions or input appreciated. thanks tommie

03-24-2003, 05:53 PM	#2
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	I suggest grabbing a pair and finding out. I've always wondered how they would work out as well. Just never looked to see if the rear dump would interfere with shift linkage or anything. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.

03-25-2003, 02:28 AM	#4
GreenMystChevy Registered User Join Date: Jan 2002 Location: Woodinville, WA Posts: 513	I've got some from a '69 Nova. They drop down and then back towards the firewall, then turn down to the exhaust. (If that made sense.) I'd have to look at them again tomorrow but that sounds about like what you are looking for. __________________ Jeremy '71 C-10 '72 GMC K2500 '72 Nova (Dad's) '70 Chevelle SS '55 Sedan Delivery Attempting to build up this here 4x4...make her real tall and purty...well, maybe just tall

03-25-2003, 10:48 PM	#5
gr8scott51 Registered User Join Date: Mar 2003 Location: Bremerton, WA Posts: 1,839	I solved the hot ram horn problem by having the manifolds cermachromed (ceramic coating looks like chrome). That brought the exterior temps down. I decided to go with the rams to maintain clearance for my clutch linkage. Just a note: I used two right side ram manifolds to match the exhaust flows for both sides, 2-1/4" to the Flowmasters, 2-1/2" from there back. Nice tone. __________________ Silence is golden, duct tape is silver. - Scott

03-25-2003, 11:14 PM	#6
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,831	Tried the newer style manifolds only to find they hit the upper A arms........... You could go with the ram horns with the 45 degree angle back and use plug wires with the straight boot..........they go out far enough not to be a problem.... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

03-25-2003, 12:45 AM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	I do not speak from experinace, but someone said the newer ones won't work. you can route the wires over the ram horns, just get some looms that bolt to the valve covers.

03-25-2003, 11:31 PM	#7
tommie 97' Tahoe 2dr/2wd Join Date: Jul 2002 Location: Huffman,TX Posts: 1,168	hit the upper a arms? i would of thought that the only problem would be shift/clutch linkage. hmmm. i was just wondering if anyone had the newer manifolds, guess everyone is using the ramhorns thanks tommie

03-26-2003, 02:33 AM	#8
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	The newer manifolds also dont clear the dipstick on older motors __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life



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