BOWTIE BUILD??? (what is it)---

SY2455 · Nov 18, 2006

Re: BOWTIE BUILD??? (what is it)---

Syborg Twin Turbo said:
Stuff that you can't buy anymore - Discontinued

Not to start a war but the new gm cat online list the following part as of this time.

http://www.gmgoodwrench.com/GMPerformanceParts/Parts/part_detail.jsp?cat=ENGB&sku=25534333

I plan on check with my contract Monday on this.:tup:

Syborg Twin Turbo · Nov 18, 2006

Re: BOWTIE BUILD??? (what is it)---

we tried to order one about 4 months ago and the part number was good and when it came time to actually geting one they came up as discontinued. However we were still able to order the 88 block, aluminum blocks but not the cnc version re 051.

dirtdemon · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

i got one Q, too :

has the "stock-block" also the outtake for a mechanic fuel-pump or only the bowtie ?

TIA,pat.

Hemi Who? · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

My "bowtie" build up looks like this:

051 Bowtie block
billet crank
billet rods
je pistons
23* bowtie heads
converted carb intake
etc etc...

Costing about $16,000 from intake to oilpan.

blk00z28 · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

Hemi Who? said:
My "bowtie" build up looks like this:

051 Bowtie block
billet crank
billet rods
je pistons
23* bowtie heads
converted carb intake
etc etc...

Costing about $16,000 from intake to oilpan.

Thank you for the straight up answer Hemi.

TYTILIDIE · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

Hemi Who? said:
My "bowtie" build up looks like this:

051 Bowtie block
billet crank
billet rods
je pistons
23* bowtie heads
converted carb intake
etc etc...

Costing about $16,000 from intake to oilpan.

Thats a truck/motor Ild like to see pics of.

Hemi Who? · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

TYTILIDIE said:
Thats a truck/motor Ild like to see pics of.

Hopefully I will be able to post some pics soon... Once there is stuff worth looking at

NOJIMMY · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

we tried to order one about 4 months ago and the part number was good and when it came time to actually geting one they came up as discontinued. However we were still able to order the 88 block, aluminum blocks but not the cnc version re 051.
__________________
Marty-mj

I'm not aware of an "88" block, but could be wrong;
there are two cast iron bow tie blocks:
10134387 - 2-bolt iorn main bearing caps
Siamesed cylinder walls
Straight cap bolt orientation
weight = 160 lbs
Semi-machined oil passage system, and

10185051 - 4-bolt steel main bearing caps
Siamesed cylinder walls
Splayed cap bolt orientation
weight = 163 lbs
Fully-machined V8 type oil system

The "051 - as it is often called" has the higher content of nickel
(which indicates higher strength as well); which tends to require more
work/effort if block coatings are used in return passages. There appears to be an
earlier vs. later version of this block as well (the earlier versions being a bit more
heavier/stronger and very sought after).

Lastly, the aluminum versions are:
10134371 - 3.75 Stroke,
weight = 78 lbls

10134351 - 4.00 stroke
weight = 78 lbs.

-Larry

CKEITH · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

blk00z28 said:
I suppose if your running a track only truck that would be fiine. But for most of us we would want to drive it here and there or maybe to the track to show what we have, good luck with the over heating problems.

if you do a half fill of hard blok you will not have overheating problems.....i have seen this done on way too many street cars with no side effects as far as cooling goes.

CKEITH · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

dirtdemon said:
i got one Q, too :

has the "stock-block" also the outtake for a mechanic fuel-pump or only the bowtie ?

TIA,pat.

the stock block does not have a provision for a mechanical fuel pump if that is what you are asking.

warmpancakes · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

CKEITH said:
the stock block does not have a provision for a mechanical fuel pump if that is what you are asking.

Early 4.3 have a provision, and the marine blocks do, and Ive seen some late 4.3 astro van blocks with one but only in work vans or conversions

CKEITH · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

warmpancakes said:
Early 4.3 have a provision, and the marine blocks do, and Ive seen some late 4.3 astro van blocks with one but only in work vans or conversions

ok i guess what i should have posted was....that the stock block that comes in our trucks with the hardened main caps does not have a provision for the mechanical fuel pump.

Windedv6 · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

CKEITH said:
ok i guess what i should have posted was....that the stock block that comes in our trucks with the hardened main caps does not have a provision for the mechanical fuel pump.

That is correct...

John

Windedv6 · Nov 20, 2006

Re: BOWTIE BUILD??? (what is it)---

My bowtie build in my AWD Ty...

Bowtie Sportsman Block - #25534333...
This "CNC Machined" V6 90 degree iron block was designed for sprotsman racing. Same as block 1018551 except it has 4 bolt nodular iron main bearing caps with grade eight bolts.

Billet Evenfire Crankshaft - Winberg... 90 degree v6...3.48 stroke... one piece RMS

Eagle Rods - #CRS570063D... 90 Degree v6... ARP 2000 bolts

JE/SPR Pistons - #139631... 4.020 bore... -24cc dish

Cam Motion - #35943...reverse split pattern... 218/214 Duration... 508/498 Lift... 114* LS

Vortec Heads - 23*... Valves - 2.00 intake/1.56 exhaust... Flow @.500 - 255cfm intake/ 205cfm exhuast... Valve train - GM 1.5 ratio cradle style roller shaft rockers.

Intake - Brodix/Pontiac - custom converted carb to EFI

My other Bowtie Motor, going in the new Ty 2WD build, started out as an Katech built ASA/ARCA motor producing 530 hp NA. I used the block and heads. I changed the crank, rods, pistons and cam. This is a dry sump motor.

Billet Evenfire Crankshaft - custom built... 90 degree v6...3.75 stroke... 2.10 crank pin... one piece RMS

Oliver Rods- 2.100" CRANK PIN with ARP-WSB 7/16" BOLTS... custom fit for 90 Degree v6...

JE Racing Pistons - #243292 custom cut... 4.155 bore... -.290 dish... 18*

CAM Motion - #36734... reverse split pattern... 236/229 Duration... .622/.591 Lift... 114* LS

Bowtie Heads - #10134359... 18*... Valves - 2.20 intake/1.625 exhaust... Flow - 340cfm intake/ 246cfm exhuast... Valve train - Jesel shaft mount.

Intake - Brodix/Pontiac - custom converted carb to EFI

Bowtie Motor from Katech...

Bowtie Rebuild...

Bowtie Motor installed into chassis...

Bowtie motors are expensive and are not needed for most high hp builds that we see on the BB. Many high hp stock block builds are seeing 11s and 10s and some on the edge have seen 9s. The extra expense may add some insurance against breakage, but as we all know, we are cabable of breaking almost everything associated with these trucks!

John

ghettosled · Nov 21, 2006

Re: BOWTIE BUILD??? (what is it)---

the only high performance parts available from GM at this time are the 359 18 deg castings, and a couple aluminum blocks. Discontinued but still in the warehouse. All other intakes, blocks, heads, etc have been discontinued, and are completely out of stock. Yes now even the regular production 4.3 blocks are discontinued. :-(

dirtdemon · Nov 21, 2006

Re: BOWTIE BUILD??? (what is it)---

CKEITH said:
ok i guess what i should have posted was....that the stock block that comes in our trucks with the hardened main caps does not have a provision for the mechanical fuel pump.

ok, another Q :
is there a way to detect a bowtie block when "in-truck" ?

i'm asking because i got a rebuilt block form houseofperformance , and i was heavily surprised when swapping the engine : recognized the hole for a mech. FP ... next thing i recognized was that there was no thread for the knocksensor (for stock position) - is that a good or a bad sign ?? :dunno:

...so, what block could that be ???

TIA,pat.

Windedv6 · Nov 21, 2006

Re: BOWTIE BUILD??? (what is it)---

It will have a bowtie emblem by the freeze plugs...and the munber cast...see photo...

John

dirtdemon · Nov 21, 2006

Re: BOWTIE BUILD??? (what is it)---

Windedv6 said:
It will have a bowtie emblem by the freeze plugs...and the munber cast
John

thanks john, will check :tup:

Houseofperformance · Nov 21, 2006

Re: BOWTIE BUILD??? (what is it)---

hey pat, if it´s a bowtie block, I want it back!!!! ;-)

ghettosled · Nov 21, 2006

Re: BOWTIE BUILD??? (what is it)---

some of the most easily recognizable signs are 1) bowtie emblem on side like john mentioned 2) 1/2" npt hole above timing chain cover for main oiling 3) fuel pump block off plate installed.

but the only way to really tell is check the casting number, and look for the bowtie emblem on the side around the motor mounts.

BOWTIE BUILD??? (what is it)---

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