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02-04-2026, 06:50 PM
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#1 |
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Active Member
 
Join Date: Feb 2015
Location: chicagoland
Posts: 108
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rams horn manifolds
I am putting together a 67 k10 chassis. I plan on using a 325 hp. 327 with the 700r4 trans and power steering. Don't really want it lifted so we will consider it stock height.
I would like to use the rams horn exhaust manifolds. I see that speedway motors has enlarged manifolds with 2 1/2" collectors. These point straight down. They don't recommend them on 4x4's. So, I found a set of stock dimension rams horns with the angled, towards the back, collectors. These too say they are recommended for two wheel drives. If it's going to be a problem, I could go with the regular manifolds or headers. But I am curious the hear what youz guys have to say about this |
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02-04-2026, 10:17 PM
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#2 |
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Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,364
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Re: rams horn manifolds
A high RPM SBC in a 400lb 4x4 brick doesn't sound like a fun combo.
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02-04-2026, 10:30 PM
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#3 |
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Roadtrip!
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 14,003
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Re: rams horn manifolds
You should be fine with the straight dump manifolds on a 4x4, I assume the engine is in the correct location?
__________________
67 gmc custom lwb dakota truck. Sold...And bought back... And sold again... 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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02-04-2026, 11:13 PM
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#4 |
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Registered User
Join Date: Apr 2016
Location: Fairbanks, AK
Posts: 371
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Re: rams horn manifolds
Yep, 4x4 uses straight dump rams horns.
__________________
1972 GMC K2500 Super Custom Matt |
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02-05-2026, 01:24 AM
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#5 |
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Active Member
Join Date: Feb 2015
Location: chicagoland
Posts: 108
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Re: rams horn manifolds
Franken
You are right about that. I've had this small journal 327 staring at me for a few years. It's just itching to go into something. I have a 56 chevy project coming up that it would be fun in but there is a 450 horse 396 sitting next to it. Maybe I should rethink this and put a 350 in the truck. Engine crossmember is using the rear mounting holes. But I still like the rams horn manifolds. |
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02-05-2026, 08:51 AM
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#6 |
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Senior Member
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,408
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Re: rams horn manifolds
I have a set of the manifolds, or similar, you're referencing to on my '70 4wd Blazer.
I got mine from Summit but I'm sure it's probably the same ones. They work just fine. Mine has a 350 turbo automatic transmission.
__________________
1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer ............. 
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02-05-2026, 12:35 PM
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#7 |
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Active Member
Join Date: Feb 2015
Location: chicagoland
Posts: 108
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Re: rams horn manifolds
I ordered the set from Speedway. 2 1/2". Easy to cut the brackets off if you don't want them. At $137 a pair it was an easy choice.
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