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Old 10-19-2015, 09:37 PM   #76
toddoky
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Are you wanting the full 304SS version, or the 409SS system with 304SS mufflers?
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Old 10-19-2015, 09:53 PM   #77
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Re: Hooker 73-87 GM truck LS swap system

The 409/304 is fine....no plans for bad weather driving.
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Old 10-19-2015, 10:04 PM   #78
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The 409/304 is fine....no plans for bad weather driving.
I'll get you a part number in the morning...are you using the Hooker transmission crossmember in your truck?
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Old 10-19-2015, 10:51 PM   #79
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Re: Hooker 73-87 GM truck LS swap system

Yep, Hooker/Holley everything swap-wise so far...
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Old 10-20-2015, 09:57 AM   #80
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Yep, Hooker/Holley everything swap-wise so far...
The part number for that system is 70501414-RHKR.
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Old 10-20-2015, 10:19 PM   #81
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Re: Hooker 73-87 GM truck LS swap system

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The part number for that system is 70501414-RHKR.
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Thank you!!!!
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Old 12-01-2015, 02:46 AM   #82
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Re: Hooker 73-87 GM truck LS swap system

Hi Toddoky,

Any plans in the near future to test fit any of these swaps parts for 73-87 4x4 K10 trucks, or develop some swap parts specifically for 4x4 square bodies? I'm building a 1979 GMC Sierra Grande currently and getting ready to put a LY6 6.0L LS engine in it backed up by a 4L80e. It's a K10 but I'm throwing a one-ton running gear underneath it with the Dana 60 axle in front and Corporate 14-bolt in back, both with 4.11 gears. I'd love to have a nice set of stainless steel full length headers, transmission crossmember, direct fit exhaust system with side exit etc. etc. for 4x4 trucks. I love the C10's but they don't do so well in a Montana winter.

Best,

Jeremy
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Old 12-01-2015, 06:14 PM   #83
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I haven't heard of any plans to develop specific components for the 4x4 applications at this stage Jeremy and it would be tough to do anything beyond engine mounts and headers due to all the different transmission, transfer case and rear axle combinations used by everyone. The C10 Hooker components definately won't fit.
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Old 12-01-2015, 10:59 PM   #84
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Re: Hooker 73-87 GM truck LS swap system

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I haven't heard of any plans to develop specific components for the 4x4 applications at this stage Jeremy and it would be tough to do anything beyond engine mounts and headers due to all the different transmission, transfer case and rear axle combinations used by everyone. The C10 Hooker components definately won't fit.
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Thanks for the reply. I totally understand. Wishful thinking I guess on my part since a lot of these LS engines people are swapping are out of 4x4 trucks like the LY6 6.0L I got out of a 2011 Chevy 2500 HD. I just figured it made sense but I see your point.

Do you know of any header applications that people have been trying for totally different vehicles that may fit with a little coersion into the K10's? I'll likely have to try that because I don't think I can afford custom built headers unless you know some place that will do it for $1,000 or less. Cheapest I found so far was $2,450 from stainlessheaders.com. Ouch! Or do you think a shorty, block hugger header or factory manifold off say the Corvette might be the ticket?
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Old 12-02-2015, 02:38 PM   #85
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Re: Hooker 73-87 GM truck LS swap system

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Thanks for the reply. I totally understand. Wishful thinking I guess on my part since a lot of these LS engines people are swapping are out of 4x4 trucks like the LY6 6.0L I got out of a 2011 Chevy 2500 HD. I just figured it made sense but I see your point.

Do you know of any header applications that people have been trying for totally different vehicles that may fit with a little coersion into the K10's? I'll likely have to try that because I don't think I can afford custom built headers unless you know some place that will do it for $1,000 or less. Cheapest I found so far was $2,450 from stainlessheaders.com. Ouch! Or do you think a shorty, block hugger header or factory manifold off say the Corvette might be the ticket?
I would check out the Hooker cast iron manifolds if you are concerned about clearance. They are based on the E-ROD LS3 manifold if I recall, but hug the block nice and tight. I believe the part number for the uncoated version is 8501HKR.
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Old 12-03-2015, 05:29 PM   #86
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Re: Hooker 73-87 GM truck LS swap system

Toddoky , Been looking for some 3" tailpipes over the axle side exit behind the tire. I see the ls swap kit in 3" has a nice looking set ( 70501415 ) . Whats the chances I can buy the tailpipe by it self . I have the rest of what I need just need the tailpipes .
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Old 12-05-2015, 09:53 AM   #87
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Toddoky , Been looking for some 3" tailpipes over the axle side exit behind the tire. I see the ls swap kit in 3" has a nice looking set ( 70501415 ) . Whats the chances I can buy the tailpipe by it self . I have the rest of what I need just need the tailpipes .
The chance of that happening is zero; the tailpipes are only sold as part of the exhaust systems.
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Old 12-09-2015, 12:13 PM   #88
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Re: Hooker 73-87 GM truck LS swap system

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The engine brackets are compatible with the later factory truck compressor that does not have the rear sensor on it, but the edge of the front lip of the clamshell mounting brace on the truck will need to be trimmed slightly to clear the compressor.
Would you happen to know the part number, or year and model this compressor is from?

Also do you have a picture of how much needs to be notched?
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Old 12-09-2015, 06:03 PM   #89
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Re: Hooker 73-87 GM truck LS swap system

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Would you happen to know the part number, or year and model this compressor is from?

Also do you have a picture of how much needs to be notched?
The OE compressor number is 10S17F (the larger displacement 10S20F was also used in some applications). I don't have a picture of the notch...you only have to notch the flange lip on the front of the mount frame bracket.
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Old 12-10-2015, 12:19 PM   #90
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Re: Hooker 73-87 GM truck LS swap system

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The OE compressor number is 10S17F (the larger displacement 10S20F was also used in some applications). I don't have a picture of the notch...you only have to notch the flange lip on the front of the mount frame bracket.
Will both work, or just the 10S17F?
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Old 12-10-2015, 10:18 PM   #91
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Will both work, or just the 10S17F?
I've only validated the fitment of the 10S17F and don't know what the physical differences are with the 10S20F, if any.
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Old 12-21-2015, 09:24 PM   #92
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Re: Hooker 73-87 GM truck LS swap system

Toddoky,

Would you have the dimension for the distance from the verticle centerline of the engine to the outside edge of the compressor for the 20-133 r4 mount and 20-134 for Sanden mount?
I can't find them on the Holley website.
Thank you!
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Old 12-23-2015, 09:15 AM   #93
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Toddoky,

Would you have the dimension for the distance from the verticle centerline of the engine to the outside edge of the compressor for the 20-133 r4 mount and 20-134 for Sanden mount?
I can't find them on the Holley website.
Thank you!
I don't have those dimensions readily available, but I can do a mock-up of the parts to get them for you...it will take a couple of days.
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Old 12-23-2015, 10:27 AM   #94
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Re: Hooker 73-87 GM truck LS swap system

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I don't have those dimensions readily available, but I can do a mock-up of the parts to get them for you...it will take a couple of days.
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Thank you. That would be very helpful in determining if those brackets will fit in the earlier trucks without cutting into the inner fenders. Your competitors have those dimensions readily available.
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Old 12-23-2015, 10:46 AM   #95
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Re: Hooker 73-87 GM truck LS swap system

Page 2 of the instruction manuals for the complete accessory drive kits shows the dimension you are looking for.

20-136 R4 Complete Accessory Kit product page:
20-136
Deep link to instruction manual:
20-136 Manual

20-137 Sanden 508 Complete Accessory Kit product page:
20-137
Deep link to instruction manual:
20-137 Manual
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Old 12-23-2015, 10:52 AM   #96
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Re: Hooker 73-87 GM truck LS swap system

Thank you! I looked everywhere...except in the instructions.
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Old 12-23-2015, 01:57 PM   #97
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Re: Hooker 73-87 GM truck LS swap system

Thank you jetfast for saving me some time this afternoon!
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Old 12-23-2015, 04:47 PM   #98
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Re: Hooker 73-87 GM truck LS swap system

No problem!
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Old 01-06-2016, 10:26 AM   #99
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Re: Hooker 73-87 GM truck LS swap system

Todd,
I placed a order through summit racing for the hooker exhaust system 11-17-15. Just got a email with expected ship date of 1-27-16. Does it really take 3 months to build a exhaust system?
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Old 01-06-2016, 10:38 AM   #100
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Re: Hooker 73-87 GM truck LS swap system

I ordered my thru summit as well first of Dec . Summit did say its to ship in Jan when I ordered . I too just got a email from summit that they have not heard from the manufacturer on a ship date yet . So not sure when it will arrive . I would like to know if is going to be another month or so .

I would expect the holidays slowed things down . Also must of not had any stock at all on hand .
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