Crate Motor - Manifold Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ryan5O · 01-07-2018, 01:27 AM

Time has come for a new motor. I've got my parts list in order, but I'm confused by one thing... rams horn. Its my understanding that 2WD were angled and 4WD were straight. Mine is a 2WD angled currently mounted on a 307. I'm upgrading to 350 and I wanted to purchase a new set of Rams Horn, but all the parts lists I find state that the 350 uses the straight. I concerned about clearance issues.

Does anyone have any actual experience with this and what can you tell me?

Ryan5O · 01-07-2018, 01:35 AM

I've been looking for angled ones all evening, and as soon I post the question I finally find a set. RockAuto has two brands listed for a 350 that are angled. They are the Dormans, and ATP. Any opinions on the two?

**Jcfcamaro** · 01-07-2018, 01:38 AM

Your right, but way not reuse your old ones. You could have them sand blasted then paint them and they'll look brand new factory.

Ryan5O · 01-07-2018, 01:43 AM

I considered that, but I wasnt sure if there were be an issue with switching from my 307 to the 350. Its my daily driver and I really dont want any surprises when it comes time to do the swap.

**Jcfcamaro** · 01-07-2018, 01:47 AM

Their the same. Only difference would be a big block.

Keystone_Hate · 01-08-2018, 12:53 PM

Is your engine mounted in the aft position? i.e. the two aft most holes in the frame rails for the engine stands.

Keystone_Hate · 01-08-2018, 12:54 PM

The reason I ask is because the angled manifolds will work for a SBC mounted in the forward or aft position (2wd or 4wd) The straight dump will work for just the aft position (4wd).

01-07-2018, 01:27 AM	#1
Ryan5O Registered User Join Date: Mar 2011 Location: Spokane WA Posts: 198	Crate Motor - Manifold Question Time has come for a new motor. I've got my parts list in order, but I'm confused by one thing... rams horn. Its my understanding that 2WD were angled and 4WD were straight. Mine is a 2WD angled currently mounted on a 307. I'm upgrading to 350 and I wanted to purchase a new set of Rams Horn, but all the parts lists I find state that the 350 uses the straight. I concerned about clearance issues. Does anyone have any actual experience with this and what can you tell me? __________________ USCG "Support Search & Rescue, Get Lost"

01-07-2018, 01:35 AM	#2
Ryan5O Registered User Join Date: Mar 2011 Location: Spokane WA Posts: 198	Re: Crate Motor - Manifold Question I've been looking for angled ones all evening, and as soon I post the question I finally find a set. RockAuto has two brands listed for a 350 that are angled. They are the Dormans, and ATP. Any opinions on the two? __________________ USCG "Support Search & Rescue, Get Lost"

01-07-2018, 01:38 AM	#3
Jcfcamaro Senior Member Join Date: Jul 2015 Location: Fairfax, Missouri Posts: 1,049	Re: Crate Motor - Manifold Question Your right, but way not reuse your old ones. You could have them sand blasted then paint them and they'll look brand new factory.

01-07-2018, 01:43 AM	#4
Ryan5O Registered User Join Date: Mar 2011 Location: Spokane WA Posts: 198	Re: Crate Motor - Manifold Question I considered that, but I wasnt sure if there were be an issue with switching from my 307 to the 350. Its my daily driver and I really dont want any surprises when it comes time to do the swap. __________________ USCG "Support Search & Rescue, Get Lost"

01-07-2018, 01:47 AM	#5
Jcfcamaro Senior Member Join Date: Jul 2015 Location: Fairfax, Missouri Posts: 1,049	Re: Crate Motor - Manifold Question Their the same. Only difference would be a big block.

01-08-2018, 12:53 PM	#6
Keystone_Hate Registered User Join Date: Apr 2017 Location: Colorado Springs Posts: 129	Re: Crate Motor - Manifold Question Is your engine mounted in the aft position? i.e. the two aft most holes in the frame rails for the engine stands.

01-08-2018, 12:54 PM	#7
Keystone_Hate Registered User Join Date: Apr 2017 Location: Colorado Springs Posts: 129	Re: Crate Motor - Manifold Question The reason I ask is because the angled manifolds will work for a SBC mounted in the forward or aft position (2wd or 4wd) The straight dump will work for just the aft position (4wd).



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