[303ta]

'76 Trans Am (original owner)

'69 WT 400 block .060 over,zero decked.hard block filled.4bolt splayed mains,

'64 389 armasteel crank,balanced
scat h-beam rods
Ross forgred racing pistons w/total seal gapless rings.
#48 heads,ported by me, Ferra stainless racing valves w/filled heat cross-over. Comp Cams magnum rockers 1:65
Comp Cams RAIV cam. '72 H.O. Aluminum intake w/Speed Demon carb.
Hooker headers w/3" exhaust to rear bumper.
Borg-Warner super T-10 w/centerline dual friction clutch
stock 3:23 rear

[stockcar32]

1968 GTO
68 YS 400 bored .030, indexed and balanced. Speed Pro forged pistons w/ 12 cc dish on stock rods w/ ARP bolts, 10/10 stock crank.
#16 68' heads w/ crossover filled, bowls blended to 72 cc's and gasket ported. Ferra valves, Crower springs and retainers.
Stock 68' intake w/ 69' RA III QJ # 7029268.
Bullitt 280/288 @ .006 w/ 223/231 @ .050 w/ .463/485 lift @ 108 lc. w/ Rhoades lifters, stock 1.5 rockers.
Ram Air II air pan, MSD Pro Billet HEI dist. Hooker Comp. 4 tube Hooker Comp. headers into 2.5 Flowmasters out 2.5 tips at rear of car.
New Switch Pitch TH 400 w/ 3000 stall converter and the original 10 bolt w/ 2.93 posi's.
Car weighs 3975 dry, have not had it to the track yet. The Switch Pitch really allows it to launch hard and still obtain driveability on the freeway.

[mr68]

Well, I have a 1968 GTO Nightshade with Parchemnt interior. IAII block, Eagle crank, Ross pistons, Eagle Rods, 505CI. KRE D_port heads 85cc ported to 330 cfm. Ruggles Q-jet, Edelbrock RPM intake with factory RAM AIR pan. Maddog headers, 3.5" Xpipe with3" tail pipes. Turbo 400 trans, Continental converter, 3.90 gears and Mickey thompson drag radials. http://youtube.com/watch?v=JhuegdYmDgI

[sixt8bird]

400 CID .030 over
#16 heads, non ported, elongated pushrod holes,stock 39year old valves.
Stock rods
TRW forged pistons.
Street Dominator Intake with Knife edged dividers
Holley 800 stock
Comp 9000 Distributer
Hooker Super Comps 1 3/4
226-234 Crane Cam
1.65 Full roller rockers
TH 350 stock
3,000 Hughes Converter
2 1/2" Flowmaster exaust with X pipe
3:73 geared, stock 1979 8.5" rear disc brakes out of TA
3810 LB weight with me in it .
Fastest ET 12.60 seconds at 105.67
Fastest MPH 107.2 @ 12.62 spinning at the line.
http://www.youtube.com/watch?v=jpEgC6G12Sk

324 Rear wheel HP
404 Rear Wheel HP with Nitrous ( Stock 39 year old valves)

12.01 @ 114 bouncing hard off the rev limiter from 1000ft on
with a poor nitrous set up. Way to rich!!

[mikejub]

69 GTO, 455, 4-spd.

71 455 HO block with 4-bolt mains 0-decked and bored 40 over. 85 cc KRE heads, gasket matched to RPM intake, otherwise heads out of the box. Crower 60919 cam (231/240), with Scorpion 1.65 roller rockers. Compression ratio yields 10.4 to 1.

Doug's headers...3" exhaust with X-crossover to 3" Xlerator mufflers, then 2.5" tailpipes out the back.

Q-jet reworked by Cliff Ruggles, using 3/4" modified spacer. MSD distributer (initial 12 degrees, 30 total). MSD blaster coil and 6AL box. Adding a 2-Step box for better launch rpm control. Fuel line...1/2" tapped into the tank right to the carb (modified inlet to accept 1/2 " line). Fuel pump...McRobb mechanical...pressure set to 6 lbs.

Trans...Liberty-built Chrysler iron case A-833 Hemi 4-spd (2.65 1st gear). New steel drive shaft 1350 U-joints at both ends. Driveshaft loop.

Diff...Chev 12 bolt, Eaton posi, Yukon 33 spline axles, 3.42 gears on 275/60/15 M/T Drag Radials. 11" drum brakes

Only had the car out to track once. 12.80 @109. No tuning or tweaking. Was having some clutch/launching issues which have since been sorted out. Can't wait to try it again. Thinking if I can get out the hole at full power and power shift, she might be down into low 12s. I'm hoping.

Great to see what others are running
Mike

[Deadhead]

#1 - 66 GP A/C
YK 421
Tri-power w/ Mechanical linkage
Factory Longbranch manifolds & Turbomax
96 heads (9.5:1)
744 (RA III) cam
Pertronix IgnitorII
3.42 safe-T-Trac
TH400 w/ street/strip kit

Good stoplight car. Too much RPM for long open road w/ 3k @ 68 MPH but have done 3000 Mi. straight. Nice lumpy idle w/ enough vacuum for power, auto & A/C.

#2 66 Bonneville wagon w/ A/C
389 030 over
AFB 4bbl 4034S
092 heads (10.5:1) w/ stainless valves, hardened seats etc.
Speedpro pistons
068 cam Melling SPC-7 kit, Double roller timing, HV oil pump
Pertronix Ignitor I
2 1/2" duals & Turbomax
2.73 Safe-T-Trac - ballanced Driveshaft
TH400 w/ street/strip & adj. modulator
1 1/8" front sway bar, 7/8" rear = bulldozer handling
8 lugs

Excellent road combo. Unlimited top-end, nice low-end power. Great sound. 3.08 would make it the ultimate road warrior you could still afford to gas up for a 1000 mile trip.

[kookykrispy]

Here's the engine that was previously in my gto



Block: '77 400 bored .30 over 2 bolt mains with ARP studs
TRW forged pistons
Speed-pro moly rings
Stock rods, ARP bolts
Stock crank, .020/.020 under
fully balanced assembly
high volume oil pump
homemade crank scraper
Heads: '67 670's bone stock
stock rockers
crane dual valve springs
Cam/lifters: Summit 2802 224/234 @.050 .465/.488 lift 114 LSA
dynomax headers (didn't fit the gto very well)
3" full exhaust
Summit fully welded mufflers
HEI with accel supercoil, taylor wires
MSD 6al
milodon water pump
MT covers
Performer RPM intake
Holley 750 vac. secondaries

With the timing dialed in, it ran good on super unleaded. Tough, rowdy sounding idle, but very streetable. Strong idle with plenty of vacuum, lots of low-end torque and it really started to scream above 2500.

I never ran this engine at the dragstrip... but I can say it was a very fun street engine in my 4 speed 67 GTO with 4.10 rear gears. My guess is it would be capable of somewhere in the 14's or maybe 13's in the quarter.

[Bruce Meyer]

1969 GTO
3965 #
455 +.030 bore +.024 stroke
9.8:1 comp ratio
Factory cast crank
factory cast rods
TRW forged pistons
Stock oiling system
6X-4 heads ported by me 250 intake 200 ex
Ultadyne 239/247 hyd cam w/rhodes lifters and comp magnum rockers
port matched torker 2
Holley 850 DP
Hedmen 1 3/4 headers w/3"exhaust. dynomax muffs
Stock HEI
TH 400 w/continental 10" that stalls around 2500-3000
12 bolt rear w/3.73 gears

Best ET in Phoenix (around 2000 ft DA at the time)
60 ft 1.675
ET 12.162
MPH 110.508

I have won a LOT of money with this car (legally)
2003 Div 7 Summit Street champion
2003 Speedworld track champion (street)

Currently the car is retired from racing and is only driven on the street

[superdutybob]

74 SD block bored +.030
Ross forged pistons with flat 12cc dome to achieve 9.5:1 CR
Stock SD rods bushed for full floating .912" Ford style pins
SD crank cut .010/.010 and polished
Comp XR288 HR cam 236/242 @ .050 - .520/.540 lift
Comp Magnum roller tip rockers 1.5 ratio
SD heads with mild bowl work and full maganese bronze guides and Viton seals
Ferrea 5000 series valves with Comp springs 130 on the seat, 350 open
SD intake manifold matched to the heads
SD carb tuned for the combo
SD exhaust manifold running into a Pypes Crossflow with 'X' pipe
SD distributor tuned by Rocky with Crane XR1 electronic conversion set to 6000 rpm limit.

Never had it on the dyno or down the track. Very happy with how it runs.

I have attached a photo for your viewing pleasure.

[Fast Floridian]

1980 transam
72 455 bored .035
JE Sportman pistons, eagle H beam 6.625 rods
Moroso 8 qt pan, used 7 qts oil with now windage tray, stock oil pump
used doug herbert lifters and sd bore brace
Ported Victor removed clover leaf smooth radius to high ports
High ports 2.250 wide port, 4.50 high, bowls hogged,
hand worked the short turns,
Polished combustion chambers,
radiused exhaust seats,
Grumpy Jenkins 1100 dominator built by Pat at pro systems
balanced by dynastat balance
Custom comp roller, with 3/8 push rods
Redneck 9 inch converter, turbo action tranny t-400
cools with stock fan and stock 4 core radiator
makes well over 700 hp on pump gas
hooks hard on rallys and radials 275 60 15 mickey drag radials
10.5 to 1 runs on 93 all day
All under the dude scoop and looks and sounds stock
finishing chassis work this week should go low 10s 1st pass

[hungry69bird]

69 firebird 3500 race weight (with me)

69 428+40
4 bolt main arp studs
stock pan, fitted crank scraper and full length windage tray
stock crank
scat H-beam rods
arias forged pistons (deep trough for valve relief)
#62 heads 260 cfm sd ported w/ferrea 6000 valves
comp cams 260/268 @ 50 650 lift w/ 1.5 rocker rollers. mechanical roller
crower lifters
chev studs rocker arm brace
sd mega brace
3/8 push rods
rpm intake port matched
850 holley dp
redneck built th350 with aftermarket sprag.
3200 conti stall
10.5 nova rear with 3.42 gears
caltracs mono leaf and bars
28 in nitto drag radials (still dont hook)

have not made it to the track yet but
thinkin i can hit high 11's easy enough if i can get some traction
on 5000 ft track
shift 6500 first around 6000 2nd and 6000 3rd

[BillyGoat]

My 455 was basically copied from a 455 engine that Cliff Ruggles built which made 455.4 HP and 522 ft lbs torque on a dyno. I rode in Cliff's Ventura right after he completed his engine when he still lived in Pgh and was totally impressed. (I believe that was in 2003) My engine seems just as strong even though I have never run my car at the track. The weak link of my car is the 8.2 rearend which I may upgrade someday. If I had sticky tires I think that I would break stuff.


1967 PONTIAC GTO

OWNER Bill Minsinger, Carnegie, PA 15106

ENGINE 1973 455 +.030”, 462 cu. in. (7.6 Litre), 9.8 : 1 Compression

HEADS/VALVES 1976 6X-4 Milled .020” (87 cc), 2.11/1.77 SSI Stainless Steel Valves,
Competition Springs, Ceramic Coated, Crossover Aluminum Filled,
Harland Sharp Roller Rocker Arms 1.65 Ratio (actual 1.72)

PISTONS /RODS TRW Forged, +.030”, Rods Resized with ARP Bolts

INTAKE Edelbrock Performer RPM, Ceramic Coated

CAMSHAFT Crower 60919 Improved Ram Air IV, 231/240 Duration, 539/539 Lift

CARBURETOR Modified 800 cfm Rochester Quadrajet

OIL SYSTEM High Output Pump, Hardened Pump Shaft, Remote Filter, 6 qt. Pan

IGNITION Calibrated HEI, Solid Metal Core Wires

TRANSMISSION 1967 Muncie 4 Speed, Hurst Shifter

EXHAUST Ceramic Coated Hooker Competition Headers with 3” S.S. Pipe and
Turbo Mufflers

REAR END GM 8.2 10 Bolt with 3.55 : 1 Gears and Eaton Posi Unit,

BRAKES Power Front Disk Conversion by Stainless Steel Brakes Corporation

[PunchT37]

1971 LeMans 3660 # without me. Fully dressed. Drive it as far as 100 miles at a time. No overheating.

455, stock crank & rods, TRW piston 80# pump. This lower end has been running since 1986. Starting to use a little oil though.

Comp P296AH-8 cam, 246/253 @ 050 566/572 lift with scorpion 1.65 rockers. Comp. Hi-Tech 5/16 9.250 pushrods.

6X#4 heads ported by SD Perf. to mid 260`s at 550.

T-2 intake with a Pro System 1000HP.

Mallory unilite re-curved to 36 @ 2300, no vacumn advance. MSD 6AL box set to 5600, MSD super conductor wires and NGK UR5 plugs.

Hooker super comp headers with 3 inch exhaust all the way to the back with 3 chamber flowmaster muffler.

All stock components are still there except a/c.

T-400 trans with modded governor, Trans Go stage 2 kit, Continental 10 inch converter.

12 bolt with stock posi running 3.55 gear. MT ET street 275/60/15 tire.

This car ran 12.21 @ 110.8 just the way it sits. 1.70`s 60`s Closed exhaust. Ran 12.24 @ 110 with a 1.80 60` also.
Needs a decent fuel system though and i`ll be putting one shortly.

Changes will be a new engine with e-heads and roller cam to make more power and higher vacumn than this engine.

As the pics show, this is no race car.

[PunchT37]

Originally Posted by PunchT37

1971 LeMans 3660 # without me. Fully dressed. Drive it as far as 100 miles at a time. No overheating.

455, stock crank & rods, TRW piston 80# pump. This lower end has been running since 1986. Starting to use a little oil though.

Comp P296AH-8 cam, 246/253 @ 050 566/572 lift with scorpion 1.65 rockers. Comp. Hi-Tech 5/16 9.250 pushrods.

6X#4 heads ported by SD Perf. to mid 260`s at 550.

T-2 intake with a Pro System 1000HP.

Mallory unilite re-curved to 36 @ 2300, no vacumn advance. MSD 6AL box set to 5600, MSD super conductor wires and NGK UR5 plugs.

Hooker super comp headers with 3 inch exhaust all the way to the back with 3 chamber flowmaster muffler.

All stock components are still there except a/c.

T-400 trans with modded governor, Trans Go stage 2 kit, Continental 10 inch converter.

12 bolt with stock posi running 3.55 gear. MT ET street 275/60/15 tire.

This car ran 12.21 @ 110.8 just the way it sits. 1.70`s 60`s Closed exhaust. Ran 12.24 @ 110 with a 1.80 60` also.
Needs a decent fuel system though and i`ll be putting one shortly.

Changes will be a new engine with e-heads and roller cam to make more power and higher vacumn than this engine.

As the pics show, this is no race car.

Update...


Car stayed mostly the same. New engine installed;


455, .035 over for 463 cubes;

Stock 103 crank, ARP main studs, 2 bolt main, 4340 I beam rods, Clevite bearings, Ross full float piston with 20cc dish for 10.3 compression, Total Seal file fit rings. Melling Select 60# oil pump with shim. Balanced, of course.

Edelbrock round port heads, 72cc, 2.20/1.74 valves, Crane 99893 springs, fast burn chamber, ported by SD Perf. for 330 cfm, ROL head gasket. Doug`s 1 7/8 tube headers.

Road Paver cam, Johnson HR lifters, Smith Brothers .115 wall 5/16 dia 8.900 length pushrods, Harland Sharp 1.5 rockers, ARP 7/16 studs. Scott Simms roller bearing timing gear/cam plate setup. Rollmaster chain.

T2 intake ported to match ports, SCE gaskets, 1 inch wood spacer, Peformance
Carb and Speed 950.


MSD pro billet dist, Blaster SS coil, MSD 8.5 Super Conducter wires, with digital 6al box, NGK BKR7E plugs. Box set at 6500.


SFI balancer and flexplate, Canton oil pan with kick out. 7 qts running level.


This thing is happy at 6000 to 6400. Very happy at 5800 to 6200.


A/C added now. Cold Case radiator, Flowkooler pump. 19.5 clutch fan. Runs 165 to 185 in summer with 160 stat.

[djustice]

Refresh of motor, with butler topendkit.

base shortblock estimated buildt around 2005-ish:
73 casting 455 bored 60 over = 469 piston is 0.001 in the hole
Speedpro L2359 .060 pistons
stock "N" crank 010 under
looks like stock rods, but with ARP rodbolts , probably resized.
Melling M54D pump (70 psi cold idle and 30 psi warm idle with 5W40) pickup welded.

New parts:

Butler topend edelbrock cnc ported heads with rollercam:

-Smith Bros 5/16 X .116, Oil Restricted, 2-Piece Chromemoly Pushrods, Custom Length, Set/16 SBR-CN5116C2-16, .030"
-Butler Performance "Tomahawk" Stock APPEARING Valley Pan w/ clearance
for Roller Lifters,
-Pontiac 1967-79 400-455 87cc Edelbrock DPort Heads, Ported to 315+CFM, Complete
-SPM-19374 Pontiac 400-455 BP Head Gaskets (canbe used on 350's also) (Set)
-Pontiac Edelbrock Torker II Intake- Port Matched to Ported Head ->too long delivery time, changed to Hurricane singleplane intake , portmatced.
-Butler Comp SP Street Performance Billet Roller Cam (HR) 3315-3316-HR112
282/288, 230/236, .510/.521, 112LS (StdFiring Order/ Std Journals)
-Pontiac Pro Billet Timing Set - Billet Gears 9 Keyway Crank Sprocket
w/Bronze bushing on cam gear
-Nitmare performance hardened pro cam plate w/oil groove 0.118 thick
-Butler D-Port Header Gasket, *2.120 X1.540*, Large Port fits Factory and
AftermarketSet/2 <- on the shelf, got remflex with large d-port.
-Johnson Lifters, Pontiac Lifter Set, HiPerf Hydraulic Roller, 326-455, Set/16
-Pontiac Intake Gaskets - Large Port 1.18X 2.35
-RMS02 Pontiac 3.25 inch Viton® Two-Piece Rear Main Seal
-OPG49 Pontiac One-Piece Oil Pan Gasket
-Pontiac Composite Distributor Gear .500 PDG38

First start: https://www.youtube.com/watch?v=nAsGlLP9hjU

[PunchT37]

My bad. Vid of 1`st fire...


https://www.youtube.com/watch?v=rqQQEgWFhho

[S.F.]

First post from Sweden. Not so good in English.

1966 GTO. Sold New Dec. 1965 in Sweden as a Tri-Power. Automatic.

Engine 1972 455 block, 2 bolt mains w. ARP. All balance.

Bore/ Stroke 4.15"/ 4.21"; .+040" over.

Deck height Zerodeck.

Heads 1971 # 96, Matchport, Bowlport, Milled for 9.7 comp.OEM Valves.
Backcut, 3 angle, 30° in, 45° ex.

Valve Springs Crower CRO-68404 springs.

Rocker arms PRW Stainless 1.65 Ratio Roller Rockers.

Pistons Sealed Power forged +.040"; 9.7 cr with milled # 96 heads.

Rings Sealed Power, File Fit.

Rods RPM 4340 I beam Forge Steel w. ARP.

Crankshaft OEM 1970, .030/.030 under; Polish, Pontiac windage tray.

Camshaft Crower 60243, Adv. Duration 284/290. Dur @ .050”: 228°/235°, Lift
w. 1:65 Rocker 0,527”/.0,543”, LSA: 112°. Install at 109° ICL.

Lifters Speed Pro HT951R - Hi-Rev Hydraulic Lifters.

Bearings Clevite 77.

Oil Pump Butler Performance Pro Series 60psi, new pump drive shaft.

Fuel Pump Carter Street mechanical.

Intake 1971 stock cast iron, Portmatch. 0.5” 4-Hole Spacer.

Carburetion 1971 Quadrajet 750 cfm, Little modified.

Exhaust Hedman Standard Duty 1 3/4” Headers, X-Pipe, 3" pipes,
3,5" Apple Raceing mufflers, 3” over axle.

Ignition OEM Dist., Ignitor III with Ignitor Coil, 19 Initial, 34 degrees total in
by 2400 rpm. +Vac.advance.

Transmission TH 400, Trans Go kit, OEM Rebuild 13" 2500 stall converter
TCI-Flexplate.

Rear gearing 12-bolt Eaton limited slip, 3.08 Richmond gears.
.
Suspension OEM with old Gabriel Hi-Jackers and rear Swaybar.

Tire/wheels Cooper Cobra, 255-60R15 ; 215-65R15 on the front; TQ-II, 15x7 front,
15x7 rear + 1,5" wider inside

Weight Ca. 3800 pounds without driver.

Performance Dyno Dynamics chassi dyno. With smaller 1 5/8” almost flat
headers.
Flywheel power: 417hp. 515 tq. (699NM).

Read from 3800rpm. Trans downshifting under 3800rpm.


Dynosheet from this engine with small headers + my older version of the engine. New engine in Green and old engine in Blue. Same Dyno but different dates.

Older engine had untouch #96 (1971) heads and intake. Only 1 5/8" headers, 3" pipes and Comp Cams XE 262 installed at 108 ICL.


From S.F. in Sweden.

[PunchT37]

Yeah. Got my regular schedule back. Stay tuned.

[b-man]

Here's a low-compression 400 that I put together on the cheap.

I started with a 1969 400 engine that came standard in the Grand Prix that year, this one had around 90K miles on it. This one suffered the same fate as many others with the factory nylon upper timing chain sprocket. The teeth came off the sprocket and the next thing that happened was the valves started hitting the pistons, bending nearly all the pushrods. Beside maybe a couple of slightly bent valves, the rest of the engine was in great shape.

1969 400 block, still std. bore as the cylinders had almost no wear ridge, this engine must have had some decent care during its life. I reused the original pistons and put some new std. iron rings on them. Pistons sit about .020" down in the hole like most factory 400 engines of that era. The original rods were reused with new std. bearings, they checked out good. Same thing with the original 400 crank, new std. bearings installed and factory balance job retained.

1976 factory baffled oil pan with HO Racing trap door mod to retain oil pressure on hard right turns. Melling M54DS oil pump, pickup retained with a 10-32 screw through the pump housing and tube and loctited in place, HO Racing hardened oil pump driveshaft. Stock filter adapter with bypass blocked off using a 3/8 pipe plug.

1976 6X-4 350 92-94cc heads, no milling or porting/port matching. Rocker studs were replaced with 7/16" big-block Chevy studs and stock Chevy self-locking crimp nuts were used to set the valves. Stock valve springs were reused as well as the retainers and keepers. 1976 valve covers with the drippers were used to help keep the rockers lubed.

Compression works out to 8.2:1, I put the original #62 high-compression heads off to the side.

Edelbrock Performer cam (204/214 @ .050, .420"/.442", same as Summit 2800 cam) was used with stock 1.5 stamped rockers and stock pushrods. Cloyes Tru-Roller timing chain, cam installed straight-up.

1972 factory iron Q-jet intake and a 1972 455 750 Q-jet were used, the exhaust crossover was not blocked off. Topped off with a stock 1970 GTO twin-snorkel aircleaner.

Stock log exhaust manifolds with the outlet ID opened up from 1.900" to 2.100" to match up to the ID of the 2-1/4" headpipes. Full 2-1/2" mandrel-bent exhaust with H-crossover, Walker Dynomax 17749 20" long Super Turbo mufflers.

TH400 trans with Trans-Go shift kit and stock converter, stock 3.23 open rear and 235/75-15 (28" tall) whitewall radials. Engine resides in a 1969 Grand Prix, weighing 4100# w/o driver.

Best ET 15.11 @ 92.7 MPH, launching fairly easy to keep traction. Not bad for low-compression 400 running nearly all stock pieces, easily a high-14s car with any decent traction tire. I was getting 13 MPG with this car running at 80 MPH on the freeway with the A/C blowing ice.

An honest 270 HP 400 built strictly for commuting, runs hard on 87 octane.