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Old Jun 23, 2004 | 12:00 PM
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Default FI Built Motor

i am looking to get a forge iron shortblock.

just want a consenses of who has a built short block from which sponsor.

please state

engine size - aluminum or iron block
time of arrival approx - day u ordered to day it actually showed up
cost
any problems
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Old Jun 23, 2004 | 12:18 PM
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APE
370ci iron
Ordered 5/21, not arrived yet
GP price of $2799
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Old Jun 23, 2004 | 12:20 PM
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10.3@136mph, ~15 psi on that pass

www.ls1speed.com 9:1 348ci sportsman block
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Old Jun 23, 2004 | 12:34 PM
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9:1 Compression Forged 370ci Iron Block

Built By AP Engineering



Polished & Magnafluxed Stock Crank

Diamond Forged Ceramic Coated -15cc Dish 4.03" Pistons Ceramic coating $150 extra

Diamond 4130 Chromemoly Wrist Pins

Diamond Pro Select Ring Set/ File Fit

Eagle H-Beam Connecting Rods 6.125"

L19 ARP Rod Bolts $100 extra

Federal Mogul 152M Main Bearings

Clevite CB663H Connecting Rod Bearings

ARP Main Studs

Cloyes Adjustable Timing Chain Set $150 extra

JWISS Ketton C5R Timing Chain $150 extra

Blueprinted & Fully Balanced

Comp XER 230/236 .592/.602 on a 114 LSA + 4

Plus the price of a brand new Iron block..... and camshaft

My total on the shortblock was a little over $4600 and for shipping they brought me my motor all the way from Michigan to Texas at the last Spring break shootout. It was a little under 4 weeks from when i placed my order till i recieved my motor.
Kyle
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Old Jun 23, 2004 | 01:11 PM
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out of curiousity, why did you guys go with the 370 ?
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Old Jun 23, 2004 | 01:21 PM
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Originally Posted by Fierce-LS1
out of curiousity, why did you guys go with the 370 ?
the cost of an iron block vs ls6 is cheaper.

cubes...i think u have to stroke an alum block to get above 370...iron block is 4.030 and uses stock crank

this is an arguementive statement...BUT...the iron block is stronger than the alum block
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Old Jun 23, 2004 | 01:25 PM
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Originally Posted by SC-MECHAM-WS6
the cost of an iron block vs ls6 is cheaper.

cubes...i think u have to stroke an alum block to get above 370...iron block is 4.030 and uses stock crank

this is an arguementive statement...BUT...the iron block is stronger than the alum block
yeah but how much heavier are they ?
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Old Jun 23, 2004 | 01:25 PM
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umm... my car # is 370 ..... think thats a good reason to go with one in the future

to bad its not 427

Ryan
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Old Jun 23, 2004 | 01:39 PM
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Agostino Racing
built it in 2 days
Aluminum ls6 block 346ci.
lunati billet rods
ross 8.75 pistons
stock crank
call for price; i don't know
daily driven & 765rwhp, i'd say built well
uses a touch of oil because of the wristpin location

the iron/aluminum thing is interesting.. i must not read enough on here but where are the 800+rw iron block guys with it being stronger and all? can i get some analysis figures to back it as well? honestly just curious... who has broken an aluminum block because they made too much hp for it to hold?
things like this make it nice to have a dyno list... so we can see who has what and what did it do.
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Old Jun 23, 2004 | 01:41 PM
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Originally Posted by Fierce-LS1
yeah but how much heavier are they ?
there have been people saying different #'s

from what i have gathered

70-100lbs heavier on the front of the car
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Old Jun 23, 2004 | 01:42 PM
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The iron block weighs about 60-70lbs more . . .
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Old Jun 23, 2004 | 01:44 PM
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Originally Posted by ChevyNo1
The iron block weighs about 60-70lbs more . . .

what compression did u get with the 370?

i just go off the phone with them and 9.1 is the lowest they offer with 70cc heads.

if you know the numbers of your pistons could u post that too.

-15?
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Old Jun 23, 2004 | 01:48 PM
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Originally Posted by SC-MECHAM-WS6
what compression did u get with the 370?

i just go off the phone with them and 9.1 is the lowest they offer with 70cc heads.

if you know the numbers of your pistons could u post that too.

-15?


yes mine are -15cc dish........ you can go with a bigger dish but it will cost you more money..... you will have to buy custom pistons..... the -15cc 4.030 piston is a shelf item...... i went with an Iron block because my stock block was cracked and a new aluminum block and iron block were about the same price.... so why not go with a little more cubes. Down the road later i wanted to have a choice if i ever did hurt anything so i could go .040 over if ever needed.
Kyle
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Old Jun 23, 2004 | 01:51 PM
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Originally Posted by NA$TY-TA
yes mine are -15cc dish........ you can go with a bigger dish but it will cost you more money..... you will have to buy custom pistons..... the -15cc 4.030 piston is a shelf item...... i went with an Irin block because my stock block was cracked and a new aluminym block and iron block were about the same price.... so why not go with a little more cubes. Down the road later i wanted to have a choice if i ever did hurt anything so i could go .040 over if ever needed.
Kyle
thanks...nice to know about the -15cc dish being a shelf item.

u you wouldnt happen to know the deck height would you?

trying to figure out would my exact C/R would be...

http://www.rosspistons.com/calculator.php

im using

4.03 = bore
3.622 = stroke
72 = head cc
0.052 = gasket thickness
??? = deck height
-15 = pistons
8 = cylinders
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Old Jun 23, 2004 | 01:52 PM
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There was a post about a guy making a billet windage tray that strengthens the aluminum blocks supposed to be good to over 1000 hp. I know that it has been done without it but just tring to help you get the strength that you are looking for with the weight reduction of the aluminum block ETC... I said windage tray above but it was mor than that it is just what it looked like to me cam with new APR studs ETC... I think it was like @ $300 for it. By the way who sold you your T-Trim kit? You never responded in the PM I sent you I was looking for the brackets.
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Old Jun 23, 2004 | 01:53 PM
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Originally Posted by SC-MECHAM-WS6
thanks...nice to know about the -15cc dish being a shelf item.

u you wouldnt happen to know the deck height would you?

trying to figure out would my exact C/R would be...

http://www.rosspistons.com/calculator.php

im using

4.03 = bore
3.622 = stroke
72 = head cc
0.052 = gasket thickness
??? = deck height
-15 = pistons
8 = cylinders


I am wanting to say .006 or .008 off the top of my head. Ill ask Chris @ APE today when i talk to him.
Kyle
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Old Jun 23, 2004 | 02:06 PM
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With 73cc heads which I'm getting, I'll be down around 8.7:1 . . . I also went with the -15cc dish.

- Dug
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Old Jun 23, 2004 | 02:10 PM
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Originally Posted by ChevyNo1
With 73cc heads which I'm getting, I'll be down around 8.7:1 . . . I also went with the -15cc dish.

- Dug
???

do u know the deck height? with 73cc you should see 8.56:1

with 0.006 deck height

and all the numbers above i post for the calculator
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Old Jun 23, 2004 | 02:26 PM
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Yea, the # I came up with was for .0001 deck height because I wasn't quite sure . . . I'm waiting to hear what Chris tells Kyle . . . as long as I'm not above 9:1 I'll be happy . . .
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Old Jun 23, 2004 | 02:48 PM
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Use .001 on the calculator.... the deck is at zero.......... Thanks Chris for the long talk.... again.... sorry if i bother you. Im a little under 9:1 but i wanted a lower comp motor. Im using 6.0L MLS headgaskets so my crushed thickness is .054

I cam up with 8.76:1 for mine with my 6.0L heads and 15cc dish pistons.
Kyle
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