12V engine build opinions

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blackstacks

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Dec 24, 2012
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Im in the process of my engine build and looking for your opinions/advise and criticism...
I'm looking to end up in the 650-750hp range. It's going in a 98 QC NV4500 lifted 5" running 35's. It's a daily driver/play truck/tow rig that will pull a couple times a year at the local county fairs..

Here's what im working with:

The block is a 95 USA International casting, bored .020 over, decked .004.
Stock crank turned .010 on mains and rods
England rods, polished, peened, parkerized, ARP bolts.
Mahle 286110 marine bowl pistons, Swain Tech Goldcoat tops and PC-9 skirts.
14mm ARP main studs and Gorilla Girdle
Hamilton 188/220 cam, 24V lifters, competition pushrods.
Head is a 97 International casting.Sufaced .006, all stock except for o-rings.
ARP 425 12mm head studs.
I'll be running a compound turbo set-up: Phatshaft 62/70/14 over a S475.
I'm sending the 215 pump to Seth@DPE to be worked over. It has 4k GSK's
5x16 injector nozzles, stock bosch bodies, pop pressure set myself at 300bar
NV4500 trans with 1 3/8 input and a SB 3600DD clutch.

I have not purchased turbo's yet. I am open to changing up the setup if i need to. Thats where your opinions come in!

I'm also contemplating if I should have the head ported while its off? Is it worth having the plenum cut off and the porting done for the HP range im going to be in? Would just a stage 2 port job with the plenum on suffice? Or how about just stock ports? Opinions please!

And yes, I have searched for similar build threads till my eyes popped :aiwebs_024:

I'm looking for advise on my particular build.

Thanks in advance!
 
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I would save the money on the mainstuds and girdle. What 5x0.016" nozzles and which S475?
 
Smokem said:
I would save the money on the mainstuds and girdle. What 5x0.016" nozzles and which S475?
Click to expand...

Well, I already have the studs and girdle.. I'm building the shortblock as stout as I can in case I ever want to really throw the fuel at it.

The nozzles are DAP 5X.016 Match Flowed 145*

S475 and 62/70/14 turbo's are still undecided as i havent purchased either one yet.

Im looking for suggestions on the turbo's.. It is my daily driver so im looking for as little lag as possible.
 
Smokem said:
You planning on running over 24° timing advance?
Click to expand...

At 24deg it is more beneficial to run 145's?
I am at 20deg right now, and definitely plan on raising it to at least 23 in the future.

[serious question]
 
I think you'll realize the cost is gonna shoot up quite rapidly...

with that said I'd skip the crank work, rod after-treatment processes, piston coating and instead spend the money on porting the exhaust side + bowls. I think a 62/65/14 over 75/96/1.10 would meet your goals, DD well, and be cost effective.
 
Why add a $500 housing to a primary that is too big if your concerned about cost?
 
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blackstacks said:
Im in the process of my engine build and looking for your opinions/advise and criticism...
I'm looking to end up in the 650-750hp range. It's going in a 98 QC NV4500 lifted 5" running 35's. It's a daily driver/play truck/tow rig that will pull a couple times a year at the local county fairs..

Here's what im working with:

The block is a 95 USA International casting, bored .020 over, decked .004.
Stock crank turned .010 on mains and rods
England rods, polished, peened, parkerized, ARP bolts.
Mahle 286110 marine bowl pistons, Swain Tech Goldcoat tops and PC-9 skirts.
14mm ARP main studs and Gorilla Girdle
Hamilton 188/220 cam, 24V lifters, competition pushrods.
Head is a 97 International casting.Sufaced .006, all stock except for o-rings.
ARP 425 12mm head studs.
I'll be running a compound turbo set-up: Phatshaft 62/70/14 over a S475.
I'm sending the 215 pump to Seth@DPE to be worked over. It has 4k GSK's
5x16 injector nozzles, stock bosch bodies, pop pressure set myself at 300bar
NV4500 trans with 1 3/8 input and a SB 3600DD clutch.

I have not purchased turbo's yet. I am open to changing up the setup if i need to. Thats where your opinions come in!

I'm also contemplating if I should have the head ported while its off? Is it worth having the plenum cut off and the porting done for the HP range im going to be in? Would just a stage 2 port job with the plenum on suffice? Or how about just stock ports? Opinions please!

And yes, I have searched for similar build threads till my eyes popped :aiwebs_024:

I'm looking for advise on my particular build.

Thanks in advance!
Click to expand...

Let me clarify a few things. These are the items I already have or have had done:

Machine work is done except for final honing, I'm waiting on the pistons to get back from Swain Tech coatings.
Rod work is done.
Balancing is done.
Already have the girdle and 14mm arp main studs.
Head work is done. (Surfaced, o-ringed, valve job, 60lb springs)
Already have the 12mm 425 head studs
Already have the lifters and pushrods
Already have the 3600 clutch and input
Already have the Fluidamper

Items or work I need or should have done: ( this where I'm looking for opinions/suggestions)

Hamilton 188/220 cam OR?..
Turbos
Pump work
I have the 5x.016 injectors but I can run something else?
Head porting?

Yes I realize the costs involved here. I already have a lot invested in it.
I'm all about spending a little more to do it right the first time. I know a lot of the work I've done is overkill for my hp/rpm range but I want to keep my options open for future mods if any...
 
You shouldn't have done the coating on the pistons yet. Did you check piston protrusion?
If you run a 188/220 cam with the head and block milled down, you might need to flycut the pistons just a little. I think you put the cart in front of the horse!
 
Diehard Ram said:
You shouldn't have done the coating on the pistons yet. Did you check piston protrusion?
If you run a 188/220 cam with the head and block milled down, you might need to flycut the pistons just a little. I think you put the cart in front of the horse!
Click to expand...

Protrusion is .025. (-/+ .0015)
Shallowest valve is .043 (varies from .043-.047)

With a stock compressed gasket thickness of .058 I should have between
.072-.078 piston to valve clearance, thats taking into account the extra thickness of the goldcaot on top (they say it adds about .003).

I shouldn't need to flycut the pistons and I should be able to run a stock thickness HG.

That is unless I did my calcs wrong??
 
blackstacks said:
Hamilton 188/220 - Just be sure there is clearance
Turbos - 63/68-0.80AR and 75/87-1.10AR
Pump work - Seth @ DPE
I have the 5x.016 injectors - Same size with a wider cone angle
Head porting - Bowl work and a good valve job
Click to expand...

My opinions.
 
I think once you try anything over 24* timing you will end up dropping it back down.

from phone
 
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