Engine Rebuild

Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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PLAGUE PHANTOM
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Engine Rebuild

Post by PLAGUE PHANTOM »

I have been meaning to post pics of this for some time. Here are pics of the rebuild

Tear Down

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Build

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Mechanic had it dynoed at 235 hp. Car doesn't sound like a stock bonneville anymore :bwoohoo:
Last edited by PLAGUE PHANTOM on Thu Nov 10, 2011 1:53 am, edited 1 time in total.
1997 Bonneville SLE...(SilverStreak)...Totaled...1/25/13...Gone but not forgotten.
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01bonneSC
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Re: Engine Rebuild

Post by 01bonneSC »

What cam did you use?
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PLAGUE PHANTOM
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Re: Engine Rebuild

Post by PLAGUE PHANTOM »

He used all stock parts...just cleaned up. I don't know how i got my horsepower to be so high. I run Royal purple in this motor now...maybe that has something to do with it :dontknow:
Last edited by PLAGUE PHANTOM on Thu Nov 10, 2011 2:15 am, edited 1 time in total.
1997 Bonneville SLE...(SilverStreak)...Totaled...1/25/13...Gone but not forgotten.
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01bonneSC
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Re: Engine Rebuild

Post by 01bonneSC »

Pretty sure you are closer to 200hp, maybe a lil higher if he did tuned the PCM.
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PLAGUE PHANTOM
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Re: Engine Rebuild

Post by PLAGUE PHANTOM »

PCM was tuned. I ported the exhaust manifolds as best as i could. I will get headers next year
1997 Bonneville SLE...(SilverStreak)...Totaled...1/25/13...Gone but not forgotten.
1968 Chevrolet Bel Air....the project
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01bonneSC
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Re: Engine Rebuild

Post by 01bonneSC »

P&P the heads/intake?

Have the dyno sheet?
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Re: Engine Rebuild

Post by PLAGUE PHANTOM »

01bonneSC wrote:P&P the heads/intake?

Have the dyno sheet?
No sheet. No P&P of the heads and intake YET (next year). Car definitely sounds meaner. It maybe has at the most 210 hp.
1997 Bonneville SLE...(SilverStreak)...Totaled...1/25/13...Gone but not forgotten.
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freneticburn
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Re: Engine Rebuild

Post by freneticburn »

You forgot to add the supercharger :sadeyz: . If I were going that deep I'd definitely had done a cam or rockers at least. But you do have a nice, clean motor to work with now :beerchug:
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PLAGUE PHANTOM
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Re: Engine Rebuild

Post by PLAGUE PHANTOM »

Cam and rockers will be done next year. Cold air intake w/ heat shield as well. Also a performance chip and headers will finish it.
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Re: Engine Rebuild

Post by 95naSTA »

PLAGUE PHANTOM wrote:Mechanic had it dynoed at 235 hp. Car doesn't sound like a stock bonneville anymore :bwoohoo:
This is complete b.s.

No stock cam, stock rockered L36 is going to dyno more than 180 whp. And I doubt anyone would go through the trouble (without major $$ incentive) to put a normal rebuild on an engine dyno. Even if they did, the engine isn't going to magically gain 30 hp.
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PLAGUE PHANTOM
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Re: Engine Rebuild

Post by PLAGUE PHANTOM »

new motor is toast. THe odd coolant leak i had ended up being internal not external. Found milkshake at the bottom of the oil filler and cap. Mechanic said it is normal for a car to get condensation on the oil cap in cold weather. He said it was safe to drive. If it goes and locks up he rebuilds it again.
1997 Bonneville SLE...(SilverStreak)...Totaled...1/25/13...Gone but not forgotten.
1968 Chevrolet Bel Air....the project
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Re: Engine Rebuild

Post by 01bonneSC »

Did you use aluminum LIM gaskets, improved upper intake and use the green coolant?
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Re: Engine Rebuild

Post by harofreak00 »

Looks like he used the stamped steel Felpros.
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PLAGUE PHANTOM
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Re: Engine Rebuild

Post by PLAGUE PHANTOM »

He reused the Plenum from the last motor i had (DORMAN)(it was replaced 2,500 miles before the last motor locked up). He never uses dex-kill in new motors. He always uses the 50/50 green coolant. When i got the car back from the rebuild, the crank seal was leaking oil on the belt and it slipped off the pullies....here is the thread explaining

http://www.pontiacbonnevilleclub.com/fo ... 19&t=27980
Last edited by PLAGUE PHANTOM on Tue Nov 15, 2011 3:13 pm, edited 1 time in total.
1997 Bonneville SLE...(SilverStreak)...Totaled...1/25/13...Gone but not forgotten.
1968 Chevrolet Bel Air....the project
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