What a timely topic - this was just posted on the Pontiac Engine Design and Theory page on FB by someone named Uzek Susol who drives his 67 Firebird on vacations 5-7000 miles per trip:
https://www.facebook.com/groups/pont...ibextid=W9rl1R
“Hi all, this is my 67 Firebird 400 that my wife & I use primarily as our vacation car. Most summers we take a few weeks & put 5-7,000 miles per trip. Currently it has 30,000 miles on a rebuild on the stock matching #'s flat top piston 400 with the addition of a large duration/high lift cam, 7/16" screw in studs, 1.5 full roller rockers, wideband O2 sensor tuned 800 CFM Quadrajet, DUI HEI, Dougs headers, Tremec 5 speed. Over the last trip I started to have a lifter noise between 1,200 & 1,800RPM which would not adjust out. I have talked with Butler at length & just recieved their package with the below contents. I'll set the original 670 heads aside looking at the aluminum heads as a slight performance upgrade & more freindly with todays questionable fuels while retaining the same compression ratio. Im looking for reliability as we are sometimes 5 plus States away from home. I will be using the stock cast iron 67 intake manifold as I have functional Ram Air air cleaner, hood panel & have opened up the factory hood vents, Butler advised the Edelbrock RPM manifold but it sits taller than the stock one & the regular Performer does not flow as well as the stock 67 intake as I understand. Any words of advice/tips before or during teardown on this 400? I am an ASE Certified Automotive Tech by trade for the last 35 years so the process does not concern me just looking for any Pontiac tips from Pontiac people. Thank you.
1 EDL-61595-2; Pontiac 72cc DPORT
Edelbrock Heads -
Complete (Pair) **Hyd Roller
(Double Spring)**
2 CCA-BP8020SP; Butler/Comp
SP Street Performance Billet
Roller Cam (HR) 276/282,
224/230, .503/.510, 112LS (Std
Firing Order/ Std Journals)
3 NIC-10120-STD; Pontiac Pro
Billet Timing Set - Billet Gears 9
Keyway Crank Sprocket
w/Bronze bushing on cam gear
4 ARP-190-3609; Pontiac Head
Bolt Kit For Edelbrock DPORT/
Performer Cylinder Heads
5 ABO-KIT-IM; Intake Manifold Bolt
Kit, 65-79 Hex Head Stainless
Steel w/washers
6 SPM-11765; Pontiac 5/16" Thick
High Density Valve Cover Gasket
Set/2
7 SPM-19374; Pontiac 400-455 BP
Head Gaskets (can be used on
350's also) (Set)
8 BPI-Gasket-Header-DP; Butler DPort
Header Gasket, *2.120 X
1.540*, Large Port fits Factory
and Aftermarket Set
June 7, 2023 2:19:40 PM CDT Page 2 of 4
THANKFPR-1233; Pontiac Fel-Pro
Standard Intake Gasket /
Includes Heat X-over Block Off
(Set)
10 CCA-7902; Adjustable Pushrod
Length Checker 5/16 (8.500-
9.800)
11 JLI-2112OPR-16; Johnson
Lifters, Pontiac Lifter Set, Hi-Perf
Hydraulic Roller, 326-455, Set/16
12 BOP-PDG37; Pontiac 301-455
Polymer Dist. Gear -0.491
13 BPI-M54DS-PRO-KIT; B.P PRO
60psi Oil Pump w/pick up and
copper gaskets(gasket taped to
lid/flap of box)
14 BPI-M54DS-PRO-PUMP-ONLY;
B.P PRO 60psi Oil Pump w/pick
up and copper gaskets(gasket
taped to lid/flap of box
15 ASC-3/8 HI Collar Lock Washer
LW; ASC-3/8 HI Collar Lock
Washer LW
16 ASC-3/8-16 x 1 1/2 HHCS GR8;
3/8-16 x 1 1/2 HHCS GR8
17 BOP-RMS18; Pontiac 3.00" Main
DUAL LIP Viton 1 Piece Rear
Main Seal
18 LPI-1P9001; Camshaft Thrust
Plate (high load aluminum nickel
bronze material)”