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Old 12-10-2009, 04:32 PM   #26
smokedat
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Re: LS1 Swap to a 73 cheyenne

deleted double post

Last edited by smokedat; 12-16-2009 at 12:05 AM.
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Old 12-10-2009, 04:36 PM   #27
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Re: LS1 into a 73 cheyenne

yeah there 799 virtually the same as 243 casting. The exhaust port is D-shape wich come on the LS6
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Old 12-10-2009, 04:39 PM   #28
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Re: LS1 into a 73 cheyenne

Belt, A/C compressor, and power steering pulley are off. Waiting on the A/C relocator pwr steering pulley and belt.
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Old 12-10-2009, 04:46 PM   #29
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Re: LS1 into a 73 cheyenne

There is no difference between the two heads. The numbers tell what original mold the casting came from. 243 mold was done at GM Research, the 799 mold is used by other vendors. The same vendor will have 243 and 799 molds. The numbers are just a GM system for when the mold was made. If a head had a problem it helps them track down where the problem started. The only difference between the heads is production variance.
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Old 12-10-2009, 04:50 PM   #30
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Re: LS1 into a 73 cheyenne

menace121978 the radiator was 700 shipped 645 with trans cooler w/o 595, as for the clean up I used regular break cleaner works good.
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Old 12-10-2009, 05:34 PM   #31
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Re: LS1 Swap to a 73 cheyenne

Awesome swap out! Will be watching this one.
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Old 12-10-2009, 05:38 PM   #32
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Re: LS1 Swap to a 73 cheyenne

subscribing to this one also...
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Last edited by menace121978; 12-10-2009 at 05:39 PM.
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Old 12-10-2009, 06:09 PM   #33
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Re: LS1 into a 73 cheyenne

What do u guys use for flaring lines i need to get a flaring kit i like this Matco tools kit



PREM DOUBLE FLARING KIT

* Quick slip-on yoke for easy use
* Ideal for brake, ATF, A/C, fuel and vacumm lines
* High quality, professional full polish chrome flaring bar
* For 1/4", 5/16", 3/8", and 1/2" O.D. tubing
* Easy operating, ball bearing flaring cone
* Matco Exclusive Stainless Steel Tube Cutter (SSTC1010) included
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Old 12-10-2009, 06:14 PM   #34
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Re: LS1 into a 73 cheyenne

# Type: 45 Flaring Tool
# Maximum Pipe Capacity (Inch): 3/4
# Minimum Pipe Capacity (Inch): 1/8
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Old 12-10-2009, 06:18 PM   #35
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Re: LS1 into a 73 cheyenne

just remember for the AN fittings they use a 37* flare. brake lines and such use the 45*.

my 45* is a craftsman and i'm really happy with it. right around $80. i had bought 2 cheapo ones from orielly and broke'em both.

i'm going to order a summit brand 37* for the an fittings.
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Last edited by menace121978; 12-10-2009 at 06:19 PM.
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Old 12-10-2009, 06:22 PM   #36
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Re: LS1 Swap to a 73 cheyenne

subscribing,...
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Old 12-10-2009, 06:24 PM   #37
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Re: LS1 into a 73 cheyenne

the best one by far is this but its more expensive
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Old 12-10-2009, 06:26 PM   #38
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Re: LS1 into a 73 cheyenne

Mastercool
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Old 12-10-2009, 06:27 PM   #39
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Re: LS1 into a 73 cheyenne

Whoa!
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Old 12-10-2009, 06:27 PM   #40
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Re: LS1 into a 73 cheyenne

"Dennis the Menace" i agree the cheap flaring tools just don't work especially on stainless steel
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Old 12-10-2009, 06:31 PM   #41
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Re: LS1 into a 73 cheyenne

has anyone used rubber type if so how is it holding up?

sample pic
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Old 12-10-2009, 06:33 PM   #42
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Re: LS1 into a 73 cheyenne

ive heard they hold great when used with the right high psi hose clamps. not those pictured the screw type.
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Old 12-10-2009, 07:52 PM   #43
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Re: LS1 into a 73 cheyenne

Quote:
Originally Posted by smokedat View Post
There is no difference between the two heads. The numbers tell what original mold the casting came from. 243 mold was done at GM Research, the 799 mold is used by other vendors. The same vendor will have 243 and 799 molds. The numbers are just a GM system for when the mold was made. If a head had a problem it helps them track down where the problem started. The only difference between the heads is production variance.

I did not know that. Out of the 100+ LS6/LS2s ive seen/worked on they all had a 243 casting number. are the heads production? Or a GMPP part?
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Old 12-10-2009, 07:55 PM   #44
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Re: LS1 into a 73 cheyenne

I recently bought the mastercool hydraulic flaring tool. It is "THE" flaring tool! The only flare die it doesn't have is the 37 degree and I "may" add it. I bought it just for the GM pushloc flare, everything else is a bonus. Anyone can make a good flare with that tool! It can be found for just under $300 if you look.
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Old 12-10-2009, 11:04 PM   #45
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Re: LS1 into a 73 cheyenne

clinebarger

so i did some research on the net, and i think im finding that the 799 was a pre production ls6 head, and the 243 replaced them, but im also seeing some 06 corvettes with the 799 heads as well??

Casting number 799 is also an LS2 head. Came on some late 06 and up tbss and other LS2 vehicles. These are the mexico cast heads. Little rougher finish. Same basic head and flow though.
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Old 12-10-2009, 11:06 PM   #46
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Re: LS1 into a 73 cheyenne

Thealien

Thanks for the recomendation will look into getting one.
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Old 12-10-2009, 11:25 PM   #47
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Re: LS1 into a 73 cheyenne

Wilwood tandem chamber master cylinder 1 1/8 bore
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Old 12-11-2009, 05:40 AM   #48
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Re: LS1 into a 73 cheyenne

how much was that little guy?
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Old 12-11-2009, 07:29 AM   #49
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Re: LS1 into a 73 cheyenne

Quote:
Originally Posted by smokedat View Post
has anyone used rubber type if so how is it holding up?

sample pic

i used factory tahoe fule lines in my truck im amazed it not used as much??
i got them from a wreck 2001 tahoe your engine being from a camaro? why not look a the fuel lines from that?? i did some slight rebending but it followed down the back of the engine on the transmission across to the chassis rair down to the tank where i modified it to suit my 78 job done im sure the camaro lines have a similar setup
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Old 12-11-2009, 08:22 AM   #50
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Re: LS1 into a 73 cheyenne

This seems to be an awesome build. Definitely subscribing!

That willwood set up looks pretty sweet on there.
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