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Old 09-11-2019, 09:26 PM   #1
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Join Date: Jul 2019
Location: Colorado
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97 Chevy Seabreeze Project

Hey ya'll I recently realized how close we are to a post apacolyptic melt down, started watching Mad Max religiously and invested in a 33' 97 Chevy Seabreeze. I'm half kidding there we're other bizarre reasons too. Anyway, 38,000 original miles, chevy 454 TBI setup. P-32 if I'm not mistaken, rear disk brakes. So far I've done fluids from radiator to rear diff greased everything. Any good leads on suspension kits? I'd like to lift it an inch or two. Pros and cons to that?

Main question, I've owned a few 454's around this era. This one looks like it has the roller cam vortec block and heads with the TBI. Did chevy mix and match these in these years? I know the Chevy/workhorse plant was shined off for some time so the mix match parts wouldn't surprise me. Did Chevy sell chassis and engines separately so the coach maker mix and matched stuff? Any history on how that went down would be appreciated.

2nd question. My driver side windshield is out of the gasket and there's a space between the gasket and the body I was an auto glass tech a long time ago in a galaxy far far away so I'm familiar with the type of gasket install, my question is do I have to Jack up the front ceiling to fit it back in like in a commercial application like a Greyhound bus? Has anyone done this themselves before? How would this have happened? How can it be prevented? Oh the questions un answered.....I'll attach a picture of what I'm talking about.

Next I have a Holley TBI unit from a 454 in a 1 ton dually, what would be a good direction to go as far as an upgraded intake to compensate for the higher flow of the Holley TBI?
Headers? Not building a race motor obviously just something that could pull my 92 Firebird behind it......Formula.

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Old 09-12-2019, 07:17 AM   #2
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Your 454 should be a vortec engine. The Holley TBI may add some power if you have the ability to tune it. Headers such as the ones Banks offers with long tubes will help performance even in the low RPM range. Intake changes will not make a lot of difference below 4000 RPM.

1993 Tiffin Allegro Bay 32'
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Old 09-12-2019, 06:31 PM   #3
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The date of completion on the document you posted indicates the coach was completed in 11 of 95. That would make it a 96 coach with a 95 chassis. The port injected Vortec 454 was introduced in the 96 P32 chassis @ 290HP.
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Old 09-12-2019, 07:15 PM   #4
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I have a 98 Sea Breeze Chevy P32 with the Vortec 7.4 (454). If I remember correctly Workhorse did not take over manufacturing until 99. I am planning on doing the Banks exhaust kit but have yet to pull the trigger.
1998 National Seabreeze 1330 Limited Chevrolet P37 chassis 7.4 Vortec 2014 Jeep JKU Sport Toad
Me, Beautiful DW, sometimes kids & grandkids
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Old 09-13-2019, 01:54 PM   #5
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Up to 98 the P32 chassis was from Chevy. NO 99 P chassis. Workhorse started production in 2000.
The P37 in the VIN does NOT define the chassis. It is still a P32.
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Old 09-13-2019, 03:57 PM   #6
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Location: Columbus, MS
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

I'm not a mechanic and it doesn't sound like you're even talking English! Noticed you are new and just wanted to say hello!

Good luck, happy trails, and God bless!
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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Old 09-13-2019, 07:13 PM   #7
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National RV forum

Have a look in the 'National' forum (under 'owners forums' ). Or the 'Workhorse' forum under 'RV forums'.

Ed Mc
Nam vet '66-'67
USMC 1996 National SeaBreeze
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breeze, chevy, seabreeze

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