Short Block Time

Roadhawg · August 20th, 2006, 10:04 PM

I am about to build a fresh Short Block.
I'm about to send an 89 SC block to the machine shop to get dipped, punched out 30 over and some new cam bearings. After that it will be time to install brass freeze plugs and Clevite 77 Main bearings. Then I will drop in a 4.2L crank and some 351w eagle I beam forged rods, 8.5 Wiesco forged pistons, with zero gap rings. Final touch will be a better breathing cam and some LS1 beehive valve springs. After that back to the Dyno for an updated tune. I will most likely snap a few pictures as I go...................

turp · August 20th, 2006, 10:36 PM

Holy shit!!! Thats sounds mean!

ckthecerealkiller · August 20th, 2006, 11:12 PM

SOUNDS SICK! DEFINATELY get some pics!

99mustang232 · August 21st, 2006, 05:49 PM

couple of questions, i assume you are going with the 4.2 crank either because you bought the supercoupe block by itself or it came with the duracast crank? also if you are using a 89 block which oil pump do you plan on using? last, which shop do you plan on having the machine work done.. because i was debating on driving mine out to harrisonburg to CMRE?

Roadhawg · August 21st, 2006, 06:13 PM

I have a 89 SC Block lying around, which I decided to use for this project. As for the 4.2 crank I got it for $198.74 (new) last week from Ford. As for the oil pump I am going to use a 95 timing chain cover and oil pump. The 95 NA timing cover uses the correct crank sensor and will accept a SC water pump.

99mustang232 · August 21st, 2006, 06:55 PM

cool, because i was gonna say from my understanding the 94-95 sc oil pumps flow much better (around 20%) and are a little stronger.

also is the 4.2L crank externally balanced? if so you should still be-able to re-use your 95's balancer and flywheel?

Roadhawg · August 21st, 2006, 07:15 PM

The 4.2 crank is internally balanced. The 95 NA 3.8 is an externally balanced so I cannot use the harmonic dampener and flexplate, but I have a harmonic dampener and flexplate from a 94 SC, which are for an internally balanced V6. Come to think of it I have a 94/95 SC timing chain cover and oil pump.

99mustang232 · August 22nd, 2006, 09:37 AM

wasn't sure about the 4.2's... got both setups right now 99 externally and 01 neutral balanced harmonic dampners and flexlates. can you tell what year a supercoupe block is by looking at it? the one i have has a forged crank, but not sure about the year? castings, timing, block + crank, rear main

Roadhawg · August 22nd, 2006, 09:51 PM

The block casting mark is on the driveriside of the block, near the back cylinder. Also there is one on the rear main cap. That looks like a 89-93 Block, as the 94-95 blocks had a windagetray.

E9 = 89

99mustang232 · August 22nd, 2006, 10:07 PM

yeah the main cap says E9S ECA so 89 it is, thanks!

August 20th, 2006, 10:04 PM	#1
Roadhawg Regular Join Date: Dec 2005 Location: Chesapeake, VA Posts: 431	Short Block Time I am about to build a fresh Short Block. I'm about to send an 89 SC block to the machine shop to get dipped, punched out 30 over and some new cam bearings. After that it will be time to install brass freeze plugs and Clevite 77 Main bearings. Then I will drop in a 4.2L crank and some 351w eagle I beam forged rods, 8.5 Wiesco forged pistons, with zero gap rings. Final touch will be a better breathing cam and some LS1 beehive valve springs. After that back to the Dyno for an updated tune. I will most likely snap a few pictures as I go................... __________________ 2003 Mustang Mach1 1995 Thunderbird LX 4.6; 4R70W w/Jmod, 8.8 3.27 Tracloc 1995 Mustang 4.2; MPX Supercharger/25%OD, 4R70W w/Jmod, 8.8 3.73 Tracloc (343rwhp/420rwtq)

August 20th, 2006, 10:36 PM	#2
turp Moderator 1989 MUSTANG LX 5.0 16.17@86.21(bone stock on street tires) Join Date: Aug 2005 Location: Virginia Beach, VA Posts: 2,893	Holy shit!!! Thats sounds mean! __________________ SUPPORT YOUR LOCAL HOOKERS....HUG A TOW TRUCK DRIVER! Donate to lxhatch@gmail.com

August 21st, 2006, 05:49 PM	#4
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,719	couple of questions, i assume you are going with the 4.2 crank either because you bought the supercoupe block by itself or it came with the duracast crank? also if you are using a 89 block which oil pump do you plan on using? last, which shop do you plan on having the machine work done.. because i was debating on driving mine out to harrisonburg to CMRE? __________________ ...even fire and single cammin

August 21st, 2006, 06:13 PM	#5
Roadhawg Regular Join Date: Dec 2005 Location: Chesapeake, VA Posts: 431	I have a 89 SC Block lying around, which I decided to use for this project. As for the 4.2 crank I got it for $198.74 (new) last week from Ford. As for the oil pump I am going to use a 95 timing chain cover and oil pump. The 95 NA timing cover uses the correct crank sensor and will accept a SC water pump. __________________ 2003 Mustang Mach1 1995 Thunderbird LX 4.6; 4R70W w/Jmod, 8.8 3.27 Tracloc 1995 Mustang 4.2; MPX Supercharger/25%OD, 4R70W w/Jmod, 8.8 3.73 Tracloc (343rwhp/420rwtq)

August 21st, 2006, 06:55 PM	#6
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,719	cool, because i was gonna say from my understanding the 94-95 sc oil pumps flow much better (around 20%) and are a little stronger. also is the 4.2L crank externally balanced? if so you should still be-able to re-use your 95's balancer and flywheel? __________________ ...even fire and single cammin

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August 20th, 2006, 11:12 PM	#3
ckthecerealkiller Enthusiast Join Date: Oct 2005 Location: Windsor CO Posts: 936	SOUNDS SICK! DEFINATELY get some pics!

August 21st, 2006, 07:15 PM	#7
Roadhawg Regular Join Date: Dec 2005 Location: Chesapeake, VA Posts: 431	The 4.2 crank is internally balanced. The 95 NA 3.8 is an externally balanced so I cannot use the harmonic dampener and flexplate, but I have a harmonic dampener and flexplate from a 94 SC, which are for an internally balanced V6. Come to think of it I have a 94/95 SC timing chain cover and oil pump. __________________ 2003 Mustang Mach1 1995 Thunderbird LX 4.6; 4R70W w/Jmod, 8.8 3.27 Tracloc 1995 Mustang 4.2; MPX Supercharger/25%OD, 4R70W w/Jmod, 8.8 3.73 Tracloc (343rwhp/420rwtq)

August 22nd, 2006, 09:37 AM	#8
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,719	wasn't sure about the 4.2's... got both setups right now 99 externally and 01 neutral balanced harmonic dampners and flexlates. can you tell what year a supercoupe block is by looking at it? the one i have has a forged crank, but not sure about the year? castings, timing, block + crank, rear main __________________ ...even fire and single cammin

August 22nd, 2006, 09:51 PM	#9
Roadhawg Regular Join Date: Dec 2005 Location: Chesapeake, VA Posts: 431	The block casting mark is on the driveriside of the block, near the back cylinder. Also there is one on the rear main cap. That looks like a 89-93 Block, as the 94-95 blocks had a windagetray. E9 = 89 __________________ 2003 Mustang Mach1 1995 Thunderbird LX 4.6; 4R70W w/Jmod, 8.8 3.27 Tracloc 1995 Mustang 4.2; MPX Supercharger/25%OD, 4R70W w/Jmod, 8.8 3.73 Tracloc (343rwhp/420rwtq)

August 22nd, 2006, 10:07 PM	#10
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,719	yeah the main cap says E9S ECA so 89 it is, thanks! __________________ ...even fire and single cammin

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