This is an ongoing project that we're documenting with videos. A 1967 numbers-matching Pontiac GTO coupe with a 400 big block.
Part 1
0:06 Build Up Project Overview
5:35 Straightening The Frame
6:00 Mounting the Body to the Frame
8:20 Recap, Coming Up
Nice! That's one of my favorite years for the GTO. One thing...as a long time Pontiac owner and enthusiast,I have to say there's no such thing as a 'big block' Pontiac engine, they're all physically the same size (except for the 301 that was sold at the end of the line, which has a shorter deck height.)
stuart in mn wrote:
Nice! That's one of my favorite years for the GTO. One thing...as a long time Pontiac owner and enthusiast,I have to say there's no such thing as a 'big block' Pontiac engine, they're all physically the same size (except for the 301 that was sold at the end of the line, which has a shorter deck height.)
Thanks! I think because the banks lay lower and leave very little room beside them, it aesthetically looks like a BB from the outside. It's been argued so many times I lost track. I almost had a fight at a car show between two guys. I thought it was funny. In the end, the big block enthusiast argued harder so I figured he deserved me to repeat that it was a big block. Otherwise that vein in is forehead popped for nothing
NGTD
UltraDork
1/16/16 8:37 p.m.
We had a Buick Regal with a 265 and it was identical size to the 400 that was in my mom's Trans Am. What an awful engine!
Part 2
We submerged the GTO fenders and doors in a molasses compound before stripping all the paint off.
0:06 After-market vs. original fender gaps comparison
2:09 Pressure Washing
2:40 Stripping The Paint
3:45 What's Next
Interesting to see how the aftermarket fenders fit (or not fit, as the case may be.) Patching the originals makes more sense.
In reply to filthyrich:
Dudes vein popped for nothing...no such thing as a big block pontiac. We had a 400 for a dozen years or so. Was in a 68 gto, damn I miss that thing. Can't wait to see what you do with your! I still have burnout videos of mine the day before she left our possession, sad day.
Putting a Cummins in this one too?
Part 3
We show you how to replace a floor in an A-Body style muscle car.
0:06 Build-up Overview
1:20 Floor Install Prep
2:11 A-Frame Body Style Floors
5:12 Installing the Floor
6:51 Keep Old Parts For Measurements
8:16 Lining Up The Gaps
Part 4
While Rich is busy doing the body work, John steps in to show you how he's been taking care of the detailing on this old Goat. We love Amesperf.com for GTO parts. And Ames Performance, if you're watching this, give us a discount!
0:06 Chrome Polishing
2:06 Sandblasting, Painting the Trim
3:19 Interior Detailing
4:21 Quarter Panel Unboxing
Part 5
Back on the '67 Pontiac GTO project, lining up the gaps and installing the trunk panel!
00:19 Fixing The Floor Gaps
03:39 Rocker Panels
04:25 Kick Panels
05:21 Floor Is In
09:52 Frame Brace Welding
11:00 Taking Out Spot Welds
13:08 Cutting Out The Trunk Panel
13:45 Prep For New Trunk Panel
14:10 Trunk Panel Install
14:27 Dry Fit Wheel Wells
15:20 Getting The Gaps Right
16:08 Next Steps
Part 6
We find out more info about the 400 V8 engine that came with our GTO before putting it together for the dyno!
00:06 Our Pontiac 400
02:24 What Do We Actually Have?
05:47 What Are We Missing?
07:21 Add Oil With Zinc Additive
07:44 Installing Push Rods
07:54 Installing Rockers
08:28 HEI Distributor
10:43 Finding TDC (Top Dead Centre)
12:52 Avoid Hydraulic Lock
13:14 Installing The Distributor
15:03 Setting Spark Plug Gap
16:00 Installing Wires
17:11 Spark Plug Wire Crimping
20:41 Looks Like An Engine
Looking good. If the engine's date code is in fact from 1969, the block code does correlate to a 350hp engine - I think but am not 100% sure out of a Grand Prix. There should be a head casting number as well, it's typically on top of the center two exhaust ports on each head. You can go to the Wallace Racing website and plug in the block and head casting numbers to confirm things. They also show how to decode the date code. http://www.wallaceracing.com/enginesearch4.htm
Edited to add: If the heads do have a 1971 date code, starting that year Pontiac lowered the compression ratio on all their cylinder heads. Depending on the casting number, they could be anywhere from 8:1 to 8.4:1. However, starting in 1971 they also had hardened valve seats so that's a good thing, plus with the lower compression you should be able to run it on regular octane gas.
Part 7
We place bets on the '69 Pontiac 400 engine dyno with their tried and tested Holley 650 vs our Edelbrock 750!
Special thanks to DSE Performace
00:06 DSE Performance Inc.
00:44 Finding Leaks
01:21 First Run
01:51 Holley 650 Carburetor
02:45 Holley 650 - 1st Pull
04:16 Holley 650 - 2nd Pull
05:13 Holley 650 - 3rd Pull
06:02 Edelbrock 750 - 1st Pull
07:00 Edelbrock 750 - 2nd Pull
08:30 Dyno Results
09:23 Who Won The Bet?
Not bad, it should make for a good street engine.
Part 8
Primed the hood and doors to take the Pontiac Goat to the body shop before getting her sandblasted, then we paint the frame!
00:06 Discount Hinge Bolts
01:25 Epoxy Primer
02:06 Welding Rotten Sections
02:59 Hidden Imperfections
03:41 Off To The Body Shop
04:00 A Week Later
04:19 Replacing A Door Skin
04:39 Check The Gaps
05:53 Sandblasting
06:54 Finishing The Frame
07:19 Paint & Frame Assembly
08:23 Check The Front Calipers
10:20 Frame Assembled
11:37 What's Next
Looks like a car again! Good work.