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red's 12 valve conversion

little by little. figure it will take me 2 weeks to get it finished, mostly because i'll be out of town next week for vacation and will be waiting for some transmission parts such as the clutch fork and the shifter to arrive.
 
got the first test fit done!

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looks like i'm going to have to move the crossmember either 1" forward or move it down some. going to try downwards first, should provide the most clearance with the firewall and the hydroboost system for when the motor moves. only other issue is the 4" exhaust downpipe is hitting the firewall, if moving the motor down doesnt fix it i might just get it turned tighter for clearance.
 
Lookin' good!

If the down pipe is hitting firewall, is there any reason you can't flip the exhaust manifold and put the turbo on the bottom.

Not sure what you have in the way there......
 
got to working on the plumbing today and checking over everything that i'll need for the engine.

1. Exhaust downpipe bent steeper
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2. radiator hoses
3. turbo oil drain tube
4. intercooler tubes
5. valve cover gaskets
6. air filter and intake tube
7. fuel lines
8. clutch line modified to use the dodge slave cylinder and the chevy master cylinder
9. hydroboost hose from pump to brake booster high pressure
10. flywheel bolts (flexplate bolts too short)
11. the engine wiring
12. fan pulley (mechanical fan clutch is stuck)
13. engine belt thats shorter since i'm not using the dodge ac compressor
14. speedo cable


the down pipe needs a slightly sharper bend to clear the firewall, figure a 2nd bend a few inches after the first turn should make enough clearance without affecting the flow much. never thought about flipping the manifold over, currently alot of empty space there.
 
got to working on the plumbing today and checking over everything that i'll need for the engine.
the down pipe needs a slightly sharper bend to clear the firewall, figure a 2nd bend a few inches after the first turn should make enough clearance without affecting the flow much. never thought about flipping the manifold over, currently alot of empty space there.

Just for comparison sake.....

Here's my twin setup with one high and one low so you can see where you might gain some clearance by flipping it.

Just a suggestion.....

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so obvious yet i completely overlooked it, your a genius sometimes.

gonna go try it out, see how well it works.
 
well that didnt work, the turbo interferes with the heater core box when the manifold is mounted upside down because the manifold shifts it a little too far outwards from the motor. more willing to have the downpipe rebent a little steeper than to tear into the heater core box. when i go to compound turbos in about a year i wont have to worry about it.
 
yea, good attempt though. if i wasnt running ac i could use the heater only box which is skinnier which would take care of the issue and would make it perfect, but i want working ac in the tow rig lol.
 
Are you planning on running electric or a mechanical fan? Electric wouldn't be much more work, and you'll have more power, less drag and more efficient cooling if you make a simple shroud and attach a pair of fans and run a thermostatic setup. Just a thought. ;)
 
......but i want working ac in the tow rig lol.

Ahhhhh, ya big sissy. Over rated!

(coming from the guy that moved the dryer and had to make all new AC lines to accomodate go fast parts and WOULD NOT be without AC)

:rof:
 
I agree, A/C is not worth not having. I'll give up 50 HP for A/C, LOL.

Like my dad said, he'd take our 65 C60 Cross-country, except he'd put A/C in it first. ;)
 
Ahhhhh, ya big sissy. Over rated!

(coming from the guy that moved the dryer and had to make all new AC lines to accomodate go fast parts and WOULD NOT be without AC)

:rof:

ha, only the 2nd vehicle i've had with working ac, not for me its for whoever is riding with me on long trips lol. i'm just as comfy with the windows down.



planning on using an electric fan, little bit thinner so provides more clearance between the radiator and engine, doesnt require much more work agreed.
 
Just watch it with the e-fans.

They're not rated for as many CFM as the engine fan is.

The normal engine fan is rated at approx 8000 CFM. The e-fans, like the Flex-A-Lite 264's that are on mine are rated at 5500 CFM and are not recommended if you gross over 18K lbs.

I really don't have that problem, but for some folks it is a consideration.
 
i'll go over that weight with towing, is there a way to counter that? pusher fan will be difficult since the intercooler takes up basicly all of the area behind the grill.
 
If you're going over that, I'd suggest staying with the mechanical fan.

Yeah, it eats up 25 - 30 HP if it's on at highway speeds, but......the alternative is overheating.

Now, I will say this.....the cooling system on these things is so overbuilt it's not even funny.

When I first put my truck back together, I ran it for 2 days with no fans at all. This was, what July / August here in Alabama and it never went over-temp. As soon as the the temp came up to normal and the t-stat opened, the temps stayed right in check.

My suggestion would be this.....

Run the mechanical fan first and see how it's doing. You already have it, so it's no skin off your back. If you decide to swap to e-fans later, you can drop the coin then. Just make sure you FULLY shroud the radiator.
 
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