building a 3406a - Competition Diesel.Com

Truckerdog · 11-22-2018, 05:20 PM

wanting a little more performance , better feul economy and need great reliability. I was thinking about changing cam shaft for maybe a few more items head, turbo. any sugestions?

chevota84 · 11-22-2018, 11:21 PM

DI or precup?

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mhuggler · 11-23-2018, 07:45 AM

X2. If that's a prechamber head, you're fighting a losing battle. Rebuild it to 4mg specs and you'll be very happy.

Truckerdog · 11-23-2018, 10:39 AM

I have two motors and 91 3406B and I have a 3406a that I don’t know the year it’s in a 84 pete how do you how do you tell if it’s pre-chamber or at direct inject. I’m Hearing you guys that I should build the 3406 a factory and maybe hop up to 30406B.

Truckerdog · 11-23-2018, 10:42 AM

I was thinking about putting an ag overhaul kit they’re saying you can put a C model head on these engines with circle exhaust ports is this a good idea

chevota84 · 11-23-2018, 12:33 PM

84 is probably DI, should say on the tag. Does it have a glow plug switch?

What are you trying to do? If it's just a hot working truck, get a good turbo, pull the fuel screws out and drive it. The injection pump on an A is going to be the holdup to any real power.

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11-22-2018, 05:20 PM	#1
Truckerdog Name: Truckerdog Title: Rookie Status: Not Here Join Date: Nov 2018 Member`s Gallery Posts: 3	building a 3406a wanting a little more performance , better feul economy and need great reliability. I was thinking about changing cam shaft for maybe a few more items head, turbo. any sugestions?

11-22-2018, 11:21 PM	#2
chevota84 Name: chevota84 Title: Too Much Time Status: Not Here Join Date: Jul 2009 Location: Prineville, OR Member`s Gallery Posts: 4,926	DI or precup? Sent from my SM-G965U using Tapatalk __________________ 99 Dodge 2500 with stuff

11-23-2018, 07:45 AM	#3
mhuggler Name: mhuggler Title: One piece at a time Status: Not Here Join Date: Sep 2007 Location: Uno, Pa. Member`s Gallery Posts: 1,523	X2. If that's a prechamber head, you're fighting a losing battle. Rebuild it to 4mg specs and you'll be very happy. __________________ 2002 2500 4x4 ETH/DEE-F1 Mach 5's/62/65/12/Smarty/ATS Ex.manifold/AFE intake/TST Comp./.020 marine gasket/o-ringed/ARP studs/5"stacks/Airdog 150/Isspro guages/Southbend 3600 DD/3.54 gears/leveling kit/Bilstein 5100frt,5150rr/37" BFG A/T's on 18" Eagle 114's/Borgeson SS/DSS

11-23-2018, 12:33 PM	#6
chevota84 Name: chevota84 Title: Too Much Time Status: Not Here Join Date: Jul 2009 Location: Prineville, OR Member`s Gallery Posts: 4,926	84 is probably DI, should say on the tag. Does it have a glow plug switch? What are you trying to do? If it's just a hot working truck, get a good turbo, pull the fuel screws out and drive it. The injection pump on an A is going to be the holdup to any real power. Sent from my SM-G965U using Tapatalk __________________ 99 Dodge 2500 with stuff Last edited by chevota84; 11-23-2018 at 12:40 PM.

11-23-2018, 10:39 AM	#4
Truckerdog Name: Truckerdog Title: Rookie Status: Not Here Join Date: Nov 2018 Member`s Gallery Posts: 3	I have two motors and 91 3406B and I have a 3406a that I don’t know the year it’s in a 84 pete how do you how do you tell if it’s pre-chamber or at direct inject. I’m Hearing you guys that I should build the 3406 a factory and maybe hop up to 30406B.

11-23-2018, 10:42 AM	#5
Truckerdog Name: Truckerdog Title: Rookie Status: Not Here Join Date: Nov 2018 Member`s Gallery Posts: 3	I was thinking about putting an ag overhaul kit they’re saying you can put a C model head on these engines with circle exhaust ports is this a good idea