1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought Home



Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby philly » November 18th, 2014, 2:53 pm

so whats the next build gonna be brian? the GP family sized hot rod? the Trans Am? if youre anything like m im sure youve got so much crap goin on its almost too much to even look at your own car projects.
-phil

There's never enough money to build it right, but there's always enough to build it twice!
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 12th, 2015, 10:17 pm

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Cleaning parts at work lately.
Cleaned the the 1971 GTO 455 #2 crankshaft today.
Cold chemical dip for 1 hour.
Into the Jet hot washer machine for 10 minutes.
Then into the Ultra Sonic cleaning machine. 40 gallon liquid capacity. Ran it for 3 cyles. About 2-1/2 - 3 hours while turning wrenches on a Caterpillar 3208 V8 diesel engine.
180-185 F Heated alkaline solution with anti rust agent.
Never touched the crankshaft with a cleaning brush.
Results are pretty amazing. Almost like NEW.
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 12th, 2015, 10:28 pm

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Upgrading the Rear differential in the Trans Am.
T/A is going to be dual purpose. From street warrior with top end speed over 180 mph
to drag race machine with 4.30- 5.38 rear diff gears.
Best way i know how is install one of my 1957-1958 Pontiac 9.3 rears.
Drop out 3rd member. Change gear ratio in under 20 minutes flat.
What the new MOSER Multi Leaf spring brackets are for. $60.00 free shipping from JEGS.
Test fitted. Perfect. LASER CUT 3-1/4" radius.
Last edited by 87vette81big on February 13th, 2015, 9:14 pm, edited 1 time in total.
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 13th, 2015, 7:32 am

Since 2015 is a Definate Drag Racing Year & Street Racing Year thanks to the Hellcat Challanger & Hellcat 4dr Charger & Even Faster SRT 2014-015 Viper that is 512 ci of Normally aspirated Knock Them Off Kill them dead all......
SBC Is definate now Dead.
Only 3 GM Engines up to The Task.
BIG BLOCK CHEVY, LS -X, & PONCHO 455-428-421-400.

WE Will take a look soon what Mickey Thompson did with factory production Pontiac V8's .
1959-1963.
NO AFTERMARKET BLOCKS OR ALUMINIUM HEADS EXISTED.
IN ONE DAY HE BROKE OVER 200 FIA RECORDS.
ALL IRON PONTIAC V8.

I Have lots of Cocks to knock off in 2015 with my 1970-1/2 T/A ALSO.
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby NOT A TA » February 13th, 2015, 9:26 am

Those are some burly looking brackets!
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 13th, 2015, 9:36 pm

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Not using the stock 1971 Pontiac 455 Pistons and connecting Rods in this build but cleaned up today just to see how they would turn out. Spares or Ebay sale material for $$$.
Removed every bit of crud & decades old baked on carbon.
Ultra Sonic Cleaning is Amazing. No better way to clean parts. Really is BEST !!!!
Never scrubbed once with a solvent brush !
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby philly » February 13th, 2015, 11:58 pm

thats awesome.... frees up your time to do other stuff so you could clean parts while you do other shit instead of spending hours scrubbing and soaking and scrubbing and soaking and shit... how much does one of those suckers cost?
-phil

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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby grumpyvette » February 14th, 2015, 12:05 am

darn impressive photography skills Brian, I'm very impressed
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 14th, 2015, 12:19 am

philly wrote:thats awesome.... frees up your time to do other stuff so you could clean parts while you do other shit instead of spending hours scrubbing and soaking and scrubbing and soaking and shit... how much does one of those suckers cost?

I don't know Phil.
I imagine New somewhere around $10k.
We can't afford of course.

Going to clean up all my engines and parts.
3 455's.
Tons of Pontiac parts.
1965 Olds 425 ci V8.
2 403Ci Olds V8.
1 Olds 455 short block.
Tall deck BBC.
Need to flip s few parts to keep building

Definate keeping The 455's and rare Poncho stuff.
Keeping the 425 Olds.
Tall drck BBC Too.
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 14th, 2015, 12:23 am

The amazing fact of Ultra Sonic cleaning is H2O Water is all that's really required .
Just a small amount of Ulta sonic cleaner agent is added.
Can use SIMPLE GREEN CLEANER TOO.
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby philly » February 14th, 2015, 2:06 am

my buddy has a small ultrasonic cleaner for cleaning his guns and gun parts, but it wont fit anything much bigger than a long connecting rod and piston.... certainly not a crankshaft set him back a few hundred bucks at a gun show display model discount
-phil

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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby philly » February 14th, 2015, 2:10 am

-phil

There's never enough money to build it right, but there's always enough to build it twice!
philly

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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby philly » February 14th, 2015, 2:22 am

this one heres only 2700 bucks, and its 19.5" wide, which i THINK will fit a sbc crank...

http://www.grainger.com/product/BRANSON ... ?$smthumb$

if its 2700 bucks at grainger i bet you can find a similar one cheaper somewhere else.

in the meantime i think its awesome you get to use the big boy piece at work haha
-phil

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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 14th, 2015, 7:57 am

I looked on Fleabay from my phone now. Found few Ultra Sonic Cleaners.

The one at work is HUGE.
40 Gallon liquid capacity.
About the size if my old Snap On KRL Series Toolbox.
Had to be very expensive when new.
I had to repair it recent. Died went dead.
Replaced The main Contactors magnetic pole relays.
Has 2 main Sonic Generators.
All stainless steel and TIG WELDED Together.
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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 14th, 2015, 9:21 am

I found an affordable Ultra Sonic Cleaner I like for at home use Phil.
When the tax return comes back $ I think I will buy this.

Have My 1965 GTO Tri- power Carburetors to rebuild for the 1963 Grand Prix & SD-455 800cfm carb for the Trans Am.
When I go drag racing for max ET & MPH I will switch to my 1085 CFM Bo Laws Holley 4-bbl to achieve 100-140 % VE Volumemetric efficiency.
The 800 CFM Q-jet delivers up 20 miles per gallon on 110 race gas if I keep my foot out of it.
Bo Laws is meant just to win Drag & Street Races.

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Re: 1971 Pontiac GTO 455 RPO L-75 325HP & 455Ft/lbs Brought

Postby 87vette81big » February 14th, 2015, 12:20 pm

When it warms up here Phil I am going to try Electrolysis cleaning also.
Some parts I have kept saved are super rusty from neglect time.
Picked them up dirt cheap or free.
New job is alot less stressfull. I want to build this year. Engines , transmissions and rear differentials.
Only the Trans Am must be race carfast.
Leaves freedom to do other projects on budget.
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