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07-26-2016, 02:45 PM | #1 |
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Progress + pics - Big block swap into the 72 Super
Parts arrived so I figured I'd post an update.
Current drivetrain:
Going in:
Phew, my credit card is still cooling down after that order. Still to find is an original style air cleaner. And I failed to order the parts of the engine mounts that attach to the block itself. Will pick up locally. I'm having a retired mechanic who restores classic cars take on most of the work. I'll be helping him where possible. I dropped all the parts off yesterday and am bringing the truck tonight. Unfortunately, this is more of a bought not built event for convenience + time sake. But, I'll be learning a lot along the way working together with the mechanic. I already painted the engine. I have orange valve covers too, which will be going on. Engine dyno As received prepped (degreased, sanded, degreased some more) and primed (2 coats) 3 coats of orange After 2 coats of clear and put back together. Will look even better with the orange valve covers back on. Undecided on painting the intake orange or not. Can decide later. Cleaned up the extra set of rallys, got 'em all for $200CAD/$150USD. To mount the drag radials on for track visits. Friday trip to the USA (Sweet Grass, MT) to pick up the parts ordered. The red line is the Canada/US boarder. Christmas time The 'before' engine bay photo Obligatory exterior photo. I expect the front will be sitting a bit lower after the BB is installed. I have 1/2" rear drop blocks to add too, plus a CPP rear sway bar that's been sitting around for 6 months. Will update as things progress. |
07-26-2016, 03:40 PM | #2 |
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Re: Progress + pics - Big block swap into the 72 Super
That simple green PRO HD will take your breath away wont it? I am about to start my build thread since I got my motor in. I am going to degrease it with that same stuff, powerwash it, paint it before I install it, and paint the inside of the engine bay as well.
Do you dilute 3 to 1 like the instructions say or just spray strait up? |
07-26-2016, 03:42 PM | #3 |
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Re: Progress + pics - Big block swap into the 72 Super
That is a dang good looking truck. Probably my favorite I have seen. Stance is perfect. And I wish I could find me a decent pair of Rally's around town for mine. I am going to keep hunting for them.
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07-26-2016, 03:54 PM | #4 | |
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Re: Progress + pics - Big block swap into the 72 Super
Quote:
Rally rims sell for a lot on ebay. You'll have better luck with Craigslist. |
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07-26-2016, 04:02 PM | #5 |
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Re: Progress + pics - Big block swap into the 72 Super
I'm sure you know, but those MT drag radials are scary on rain or any kind of wet condition. They are like ice skates. Now for dry conditions, I love em. They are a lot of fun. Your truck is gorgeous and it looks like it's about to get even better!
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68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi |
07-26-2016, 04:09 PM | #6 |
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Re: Progress + pics - Big block swap into the 72 Super
I'm definitely aware. The drag radials will be hauled in the bed to the drag strip.
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07-26-2016, 05:43 PM | #7 |
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Re: Progress + pics - Big block swap into the 72 Super
Nice to see a good healthy big block going in that beautiful truck.That will be a strong runner when your done.I am all into the old school big blocks.Nice job all around!!
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07-26-2016, 06:15 PM | #8 |
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Re: Progress + pics - Big block swap into the 72 Super
I gotta tell you I love that color green on your truck!!!
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07-27-2016, 09:00 AM | #9 |
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Re: Progress + pics - Big block swap into the 72 Super
I'm putting together a '69 390 hp 427 for my '69 short step and am painting it/dressing it up to look stock as wel. My air cleaner solution is a dual snorkel from a 70-72 Camaro. Either Z/28 or big block. Uses a standard 14"x3" filter element.
Great project you have going, looks like fun! Edit: even better, the 70 Camaro air cleaner is designed for a Holley so has clearance bumps for the float bowl adjustment nuts. I also bought reproduction steel fuel lines and brass block along with 68 Camaro big block deep groove short pump pulleys.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax Last edited by Mike C; 07-27-2016 at 09:02 AM. Reason: Added info |
07-27-2016, 10:13 AM | #10 |
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Re: Progress + pics - Big block swap into the 72 Super
Nice work, love that color green too.
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07-27-2016, 10:23 AM | #11 |
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Re: Progress + pics - Big block swap into the 72 Super
I'm in cool project sir!
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07-27-2016, 02:23 PM | #12 |
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Re: Progress + pics - Big block swap into the 72 Super
Im in. Awesome.
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1971 Longbed BB Cheyenne Super 1972 Longbed SB Cheyenne Super 1972 Longbed Highlander Custom Deluxe 1975 K5 4x4 full convertible Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=645165 Greg Smyrna TN |
07-27-2016, 02:50 PM | #13 |
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Re: Progress + pics - Big block swap into the 72 Super
Very nice looking truck.
I like that you painted the aluminum heads. very sneaky. I was always going to do that just don't have the heart to cover up that pretty looking aluminum. I think grinding off the edelbrock on the intake and painting that orange would look sharp too.
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07-27-2016, 03:03 PM | #14 |
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Re: Progress + pics - Big block swap into the 72 Super
Thanks. I know some ppl really want the fact that they have aluminium heads to be visible. Not me. I didn't have the patience to fill in the Edelbrock recess in the heads, but most ppl won't notice. Good idea about grinding off Edelbrock from the intake if I end up painting it.
This fellow's engine bay is a bit of an inspiration to me: http://67-72chevytrucks.com/vboard/s...&postcount=132 Mike C, thanks for the info on similar looking air cleaners. I'll probably do that while I keep looking for a C10 one. |
07-27-2016, 04:12 PM | #15 |
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Re: Progress + pics - Big block swap into the 72 Super
Nothing... I mean Nothing sounds like a big block. Its as unmistakable as a Harley V-twin. Like music.
Oh yea, torque is great too I guess. lol |
07-27-2016, 06:24 PM | #16 | |
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Re: Progress + pics - Big block swap into the 72 Super
My motor is iron head still so not a problem. I was going to go with the Edelbrock Performer RPM oval but after analyzing dozens of online pics it seems the GM Performance parts intake is the same. So instead of having to grind off the Edelbrock I will just leave the Bowtie figuring most people won't have a clue.
Quote:
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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07-28-2016, 02:06 PM | #17 |
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Re: Progress + pics - Big block swap into the 72 Super
Found the aircleaner I need on ebay. Not cheap but I'm told they're hard to come by so decided to snap it up. Already have the Keep it GM sticker.
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07-28-2016, 02:51 PM | #18 |
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Re: Progress + pics - Big block swap into the 72 Super
I'm surprised you are not going with a dual snorkel air cleaner rso that BB can breath a little better. One from a 72 Camaro Z28 will work on your truck and look like it belongs. The attached pics are form one I found on Ebay. If you didn't want the chrome lid you could probably use the original black one from your truck.
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07-28-2016, 02:52 PM | #19 |
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Re: Progress + pics - Big block swap into the 72 Super
Nice. And original. But the Z/28 air cleaner flows almost 4 times as much air. And it clears the Holley float bowls without a carb riser/spacer. And let's you use any 14x3 performance filter element.
It's not cheap either, but you do have a 400+ hp big block to feed!
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
07-28-2016, 03:44 PM | #20 |
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Re: Progress + pics - Big block swap into the 72 Super
I hear you about the OEM air clearer potentially restricting HP.
My plans are: a) drill a bunch or large holes in the bottom of the air cleaner, out of sight. I've heard of someone else doing this, but am not such a fan of ripping up a $200 air cleaner. b) from what I know the snout is the rare/unique portion of the OEM truck air cleaner. If I can transfer the truck air cleaner snout to a more generic (Camaro, Chevelle) air cleaner casing, I'll drill holes in the base of the generic air cleaner for more flow, saving the OEM style casing for 'shows'. |
07-28-2016, 06:17 PM | #21 |
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Re: Progress + pics - Big block swap into the 72 Super
I would just run the Z/28 air cleaner and I have already purchased one. I have an original big block one off my old 70 GMC though. (Rock Auto has 14x3 re-usable oiled cotton gauze Air Hog Fram filters for $1.75 BTW!) Rock Auto cheapest place I found the Camaro air cleaner as well.
The way you do holes for more flow into the stock filter is to use a chassis punch and put 1 1/2" holes around the circumference of the outside rear of the air cleaner housing. The area just in front of and to both sides of the distributor. But for a driver, I would just run the Z/28 air cleaner to which 99% of the people will think is stock. The bigger tip off is the air gap manifold to anybody in the know.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
07-28-2016, 06:33 PM | #22 |
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Re: Progress + pics - Big block swap into the 72 Super
I don't hate that idea, and the hole idea you mentioned is exactly what i was thinking.
There appear to be 2 style Z/28 air cleaners. The first one below looks closer to the truck style. |
07-28-2016, 08:04 PM | #23 |
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Re: Progress + pics - Big block swap into the 72 Super
You can also just flip your lid of your air cleaner over like we did in the old days!!!!
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07-28-2016, 09:43 PM | #24 |
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Re: Progress + pics - Big block swap into the 72 Super
The one on the left is a cowl induction air cleaner missing the seal and the extension depending on the motor. But the lid is smaller than the base leaving the whole element exposed to fresh air sealed to the hood.
The one on the right is the 70-72 Z/28 and SS396 Camaro air cleaner which is what I bought for my '69 short step with it's soon to be installed 427. Edit: You can buy it with either chrome or black lid on Rock Auto or any of the Camaro Parts guys. Rock Auto is where I found it cheaper. No need to mess with modifying an original and you don't have the "missing parts" of the hot air stove and vacuum door.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax Last edited by Mike C; 07-28-2016 at 10:13 PM. Reason: added info |
07-28-2016, 10:14 PM | #25 |
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Re: Progress + pics - Big block swap into the 72 Super
Seems like the simplest solution...
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