Author Topic: 1978 Y88 Restoration  (Read 16663 times)

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #200 on: January 27, 2024, 10:22:50 PM »
Those short box mufflers are pretty loud and may not flow that great.

I am running 17749 Dynomax (Formerly "Hemi") mufflers on that setup shown - X pipe and full tailpipes.  Not as quiet but a hell of a lot better than Dronemasters on sounds and flow.


https://www.pontiacstreetperformance.com/psp/exhaust.html

https://www.summitracing.com/parts/wlk-17749?seid=srese2&utm_source=bing&utm_medium=cpc&utm_campaign=Brands%20%7C%20D&utm_term=4581733674156216&utm_content=GSAPI%205ba263233d6fc

https://youtu.be/9RDBMtxG7Fc

Before I seen your reply I just viewed the youtube video.  I do like the sound and not too loud.  I may just piece together everything, except the mufflers, from ramairrestoration, and possibly use the 17749's.

Going to do more research before anything is bought and paid for.

Thanks for the info.
Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

scarebird

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Re: 1978 Y88 Restoration
« Reply #201 on: January 28, 2024, 09:32:02 AM »
Were I to do your exhaust I would use 2-1/4" mandrel pipe, no X crossover and the transverse case Dynomax.

Why smaller pipe?  Don't really need 2-1/2", and using RA3 manifold with 2-1/2" downpipes is a PITA.  Fitment is far easier with smaller pipes along with ground clearance, and when I went from 2-1/4" to 2-1/2" on my Lemans with the same type of mufflers it got MUCH louder.  To me, all a loud exhaust does is call attention to hoonish action to the guys with blue lights.

I would maybe even stick with the logs - on lower HP apps they do not lose much power and are considerably lighter and cheaper. 

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #202 on: January 28, 2024, 04:10:32 PM »
I have the original exhaust manifolds and they're in good shape.

Thanks for the input.
Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #203 on: February 04, 2024, 02:52:26 PM »
For now.....going with the Ram Air manifolds, down pipes, x pipe and end pipes.  Still working on the muffles/resonators.
Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #204 on: February 04, 2024, 02:54:00 PM »
1102854 63 amp Delco alternator before rebuild

Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

Re: 1978 Y88 Restoration
« Reply #204 on: February 04, 2024, 02:54:00 PM »

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #205 on: February 04, 2024, 02:55:15 PM »
1102854....now 100 amp after rebuild

Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #206 on: February 04, 2024, 02:57:25 PM »
Rebuilding the BW Super T-10 4 speed shifter.  One of the insulator pads is coming out at the bottom of the handle so decided it was necessary.  Parts will be here by end of week.



Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

b_hill_86

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Re: 1978 Y88 Restoration
« Reply #207 on: February 04, 2024, 06:42:46 PM »
Pretty straightforward job with the shifter. I did mine a few years ago. Are you taking the carrier apart as well?
-Brian-

1977 Trans Am 400 4 speed

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #208 on: February 04, 2024, 08:11:29 PM »
Yes....everything will be done.  The kit is a complete rebuild including the springs and pads.

« Last Edit: February 06, 2024, 02:24:20 PM by wheels78ta »
Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #209 on: February 06, 2024, 02:27:43 PM »
Watched a few videos to work on the shifter.  This guy does the break down of the shifter and assembly.  He made his own tools and bracket to work on the carrier.  I have some steel scrap that I used for the bracket and bought a couple of putty knives to copy what he did.  Worked out great.

https://www.youtube.com/watch?v=5EU9wj4vgdY&ab_channel=EricCrashDavidson

Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #210 on: April 24, 2024, 05:15:22 PM »
Ram Air Restorations RAII exhaust manifolds.

Driver side/LH

Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #211 on: April 24, 2024, 05:16:15 PM »
Passenger side/RH

Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

wheels78ta

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Re: 1978 Y88 Restoration
« Reply #212 on: April 24, 2024, 05:18:39 PM »
To go along with the Pypes exhaust system.....

Willie

1978 Gold Y88 4 spd W72 WS6 project
1987 K5 Blazer---The Crawler
2006 Chevy Silverado Z71----Hers
2005 Chevy Suburban 2500---The Hauler

Re: 1978 Y88 Restoration
« Reply #212 on: April 24, 2024, 05:18:39 PM »
You can help support TAC!