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1969 Pontiac GTO - GTO505


1969 Pontiac Gto 1
Owner:   GTO505
Year: 1969
Make: Pontiac
Model: GTO
Est.Horsepower: 606
Engine Type and Size: 505ci IA II Pontiac
Torque @rpm: 641 lb/ft of torque @ 4,600 rpm
Transmission: Turbo 400
Power Adder: NA
Performance (ET/MPH): NA
Page Views: 7577
Comments: 3 Comments
Ratings: 3 votes   Login to rate
This is my Custom Pro-Touring 1969 GTO.
Here are the specs:
505ci IA II (iron block) pump-gas Pontiac engine built by Andy Mitchell
4.35” bore / 4.25” stroke
Dyno’d 606 hp @ 5,300rpm and 641 lb/ft of torque @ 4,600 rpm
Crankshaft: Eagle 4.25” stroke with 3.25” mains
Con Rods: Manley 4340 forged steel H beam rods
Pistons: Custom J.E. forged
Rings: Total Seal
Bearings: Clevite rod & main bearings, Dura bond cam bearings
Timing Set: Comp Cams nine key way billet
Oil Pan: Canton 6-qt road race
Gaskets: SCE and Fel-Pro
ARP fasteners used throughout
March aluminum pulleys
4 core radiator
FlowKooler water pump
Perma-Cool High Performance Stainless Steel flex fan
Stock shroud
Comp Cams hydraulic roller cam
Duration @ .050: 252 intake / 262 exhaust
Lift: .600 intake / .630” exhaust
Lobe separation: 110 degreed at 106.25
Comp Cams hydraulic roller lifters
Edelbrock 60589 aluminum Pontiac Performer RPM heads (fully ported)
Flow numbers: 312 cfm @ .600 lift / 225 cfm @ .600 lift
Combustion chamber: 72cc
Intake valves: Manley Race Series stainless 2.11”
Exhaust valves: Manley Race Series stainless 1.66”
Valve springs: Comp Cams 1.55” dual springs
Pushrods: Manley 5/16” 4130 Chrome Moly
Rocker arms: PRW aluminum roller rockers 1.5 ratio
Intake manifold: Edelbrock Victor fully ported
Carburetor: Pro-Systems 1100 cfm Dominator set up for the street
Mallory HyFire 6 digital ignition
MSD Pro-Billet distributor
MSD Blaster II high vibration coil
Taylor Thundervolt 50 10.4mm plug wires
Fuel System:
Original gas tank with rear sump
Edelbrock Quiet-Flo electric 160 GPH fuel pump
Quick Fuel billet fuel pressure regulator -8AN
2 RobbMC high flow fuel filters
-8AN braided steel line from tank to pump to regulator
-6AN braided steel line from regulator to carb
Exhaust system:
Doug’s 1 7/8” primaries / 3 ½” collectors ceramic coated round port headers
3” mandrel bent Flowmaster with H-pipe
Flowmaster 3” Super 44 2-chamber mufflers
Pypes stainless splitter tips
Air Ride Technologies GM A Body RidePro Max e2 system w/remote
Tubular upper & lower front control arms with ShockWaves shocks
Tubular upper & lower rear control arms with airsprings and standard shocks
Poly bushings throughout
Hardened stainless steel bolts
1 1/4” front sway bar / 1” rear sway bar
Boxed frame
Quick ratio steering box
Moog inner and outer tie rod ends with Edelbrock heavy duty tie rod sleeves
Grant steering wheel
Turbo 400 transmission (rebuilt heavy duty) backed by a Gear Vendors Under/Over Drive
Redneck 3,000 stall torque converter
Stainless tranny lines
GM 12-bolt rear with Yukon/Eaton Duragrip posi, 3.73 gears, 33 spline axles,
TA aluminum girdle cover, c-clip eliminators, & welded axle tubes
Front: Baer Track System with 13” cross-drilled & slotted rotors & 2-Piston aluminum calipers
Rear: Baer Serious Street System with 11” cross-drilled & slotted rotors & 2-Piston calipers
Stainless brakes lines front to back
DeBeer black base with House of Kolor clear (looks like glass)
Shaved drip rails
Smoothed firewall
Raptor bedliner sprayed underneath entire body and wheel wells
Stainless bolts used throughout entire car
Laser straight paint & body work by Hippy’s Body Shop in Pandora, Ohio
18” Foose Nitrous Classics with Nitto Extreme NT555 tires
Fronts: 18x8.5 (4.5” B/S) with 235/40’s
Rears: 18x10 (5.25” B/S) with 285/40’s
Original stock looking black interior
Custom brushed aluminum inserts in the dash and console
Southern Air heating and air conditioning system
Classic Instruments gauges
Wiring from American Autowire Highway 22 kit
Pioneer 200W CD player, Boss Audio 200W amp, Pioneer 6.5” kick panel speakers, Triple X 600W 6x9 rear speakers
ThermalSound Direct Q-Mat sound proofing used throughout the interior

stealer36 | New User
Posts: 0 | Joined 02/08/10
Posted: 02/08/10 10:14 PM

Great job on this GTO.  I have one in the paint shop now and should be done in a few weeks. I would like to go with tire and rim sizes like your. Question is did you have to make any modifications on the fender wells to make them fit? thanks Mike in GA
Pontiacman | Guru
Posts: 1890 | Joined 11/09/07
Posted: 07/04/09 05:33 AM

Very nice ride.
jaredroble | New User
Posts: 0 | Joined 07/22/08
Posted: 07/22/08 09:37 PM

like wat uve done with it and i saw it at the mecum auction... u probably dont remember me but i looked at it for a long time. i want a gto and this car is the reason i want one
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