| 455 Buick Edelbrock |
Pump gas friendly
Comp Cams hydraulic cam
Edelbrock's new aluminum Stage 1 heads
Performer intake with an 800 Q-jet
Comp Cams hydraulic cam
Edelbrock's new aluminum Stage 1 heads
Performer intake with an 800 Q-jet
These are a few pictures showing the Edelbrock heads with small block Chevy 1.6 needle bearing rockers.
I used a really good set of PBM rockers on this first Edelbrock headed engine and had to clearance some
of the rockers to clear the bolt bosses of the valve covers.
I used a really good set of PBM rockers on this first Edelbrock headed engine and had to clearance some
of the rockers to clear the bolt bosses of the valve covers.
7-24-2007
We fired up the "Edelbrock" and broke it in this afternoon.
Changed the springs and made a couple of pulls with our "dyno
750 Q-jet" that we use for break-in because it is known good
carb. I was really impressed with the results as we made
551 lb ft of torque at 4200 RPM and 499.6 HP at 5300 RPM.
Tomorrow I am going to put on the 800 Q-jet that we have
intended to use. My dyno carb is so good there may not be any
difference but you never know. This engine is 10.46 to one
compression, un-ported heads right out of the box, Performer
intake and a hydraulic cam that still has 13 inches of vacuum at
800 RPM.
We fired up the "Edelbrock" and broke it in this afternoon.
Changed the springs and made a couple of pulls with our "dyno
750 Q-jet" that we use for break-in because it is known good
carb. I was really impressed with the results as we made
551 lb ft of torque at 4200 RPM and 499.6 HP at 5300 RPM.
Tomorrow I am going to put on the 800 Q-jet that we have
intended to use. My dyno carb is so good there may not be any
difference but you never know. This engine is 10.46 to one
compression, un-ported heads right out of the box, Performer
intake and a hydraulic cam that still has 13 inches of vacuum at
800 RPM.
We built this engine for Randy Hosler (Randy Hosler Pontiac - Buick - GMC in Clarkston MI.) Randy wanted a
trouble free (pump gas) engine and wanted to use the factory Stage One air cleaner assembly so we chose
the Q-jet for its trouble free operation, Performer intake to fit the factory air filter and hydraulic cam so he
would never have to take off the valve covers. Randy furnished the short block core, sadly it was already .060
over and valve covers, black with the fins painted orange, kinda looked like Halloween, I had them powder
coated Buick red and milled the fins down.
trouble free (pump gas) engine and wanted to use the factory Stage One air cleaner assembly so we chose
the Q-jet for its trouble free operation, Performer intake to fit the factory air filter and hydraulic cam so he
would never have to take off the valve covers. Randy furnished the short block core, sadly it was already .060
over and valve covers, black with the fins painted orange, kinda looked like Halloween, I had them powder
coated Buick red and milled the fins down.
Specifications
464 cu in
4.350 bore
3.90 stroke
10.46 to 1 compression (pump gas)
Custom Comp Cams hydraulic cam
236/241@.050 .553-548 lift 112 LCS
Edelbrock out of the box heads (flow 270 intake 182 ex with 68 cc chambers)
(I did take them apart, inspect, clean work on the oil returns
a little and flow the #1 and #3 ports)
1.6 ratio needle bearing rockers
Comp cams 3/8 push rods (9.750 long)
21 cc dish pistons Pro-Tru
AM&P H-beam rods
all AM&P oil modifications
balanced and blue printed
Edelbrock Performer intake
AM&P intake oil shield
Q-jet carb
MSD ready to run electronic distributor and coil
464 cu in
4.350 bore
3.90 stroke
10.46 to 1 compression (pump gas)
Custom Comp Cams hydraulic cam
236/241@.050 .553-548 lift 112 LCS
Edelbrock out of the box heads (flow 270 intake 182 ex with 68 cc chambers)
(I did take them apart, inspect, clean work on the oil returns
a little and flow the #1 and #3 ports)
1.6 ratio needle bearing rockers
Comp cams 3/8 push rods (9.750 long)
21 cc dish pistons Pro-Tru
AM&P H-beam rods
all AM&P oil modifications
balanced and blue printed
Edelbrock Performer intake
AM&P intake oil shield
Q-jet carb
MSD ready to run electronic distributor and coil
7-26-2007
We finished the tests of Randy's engine today and picked up a few points with the
800 CFM Q-jet 555.2 lb ft of torque at 4100RPM and 508.9 HP at 5100 RPM.
Also note that it held over 500 lb ft of torque from 3000-5300 RPM
We finished the tests of Randy's engine today and picked up a few points with the
800 CFM Q-jet 555.2 lb ft of torque at 4100RPM and 508.9 HP at 5100 RPM.
Also note that it held over 500 lb ft of torque from 3000-5300 RPM
7-27-2007
I had just had the carburetor off to open up the idle tubes to richen up
the Q-jet at idle a bit when just after closing time I got a phone call. It was
Randy outside my shop, he had arrived early from Michigan to pick up his
engine so he got to see a couple of pulls on his new engine.
After warming up the engine we made two back to back pulls. The first
was almost a mirror image of the last one the day before and the second
rewarded us with 560 lb ft of torque at 4,200 RPM and 511 HP at 5,400
RPM.
Before we shut the engine off i did a map test at 964 RPM 162
degrees water temperature, 190 degrees oil temperature, air fuel was
13.7 left side and 13.6 right, 13.1 inches of vacuum, and get this 38.8
lbs of oil pressure with a standard oil pump.
Randy had a big smile on his face hearing that good looking 455
rumbling at idle crisply after that last pull.
This engine has our standard clearances on Street/Strip engines or
between .002 and .0025 clearance on rods and mains. Even after clipping
the "white" spring two rounds it has 73 lbs of oil pressure at 5,500 RPM.
Randy will be sending some pictures in a few weeks of his car with its
new power plant.
I had just had the carburetor off to open up the idle tubes to richen up
the Q-jet at idle a bit when just after closing time I got a phone call. It was
Randy outside my shop, he had arrived early from Michigan to pick up his
engine so he got to see a couple of pulls on his new engine.
After warming up the engine we made two back to back pulls. The first
was almost a mirror image of the last one the day before and the second
rewarded us with 560 lb ft of torque at 4,200 RPM and 511 HP at 5,400
RPM.
Before we shut the engine off i did a map test at 964 RPM 162
degrees water temperature, 190 degrees oil temperature, air fuel was
13.7 left side and 13.6 right, 13.1 inches of vacuum, and get this 38.8
lbs of oil pressure with a standard oil pump.
Randy had a big smile on his face hearing that good looking 455
rumbling at idle crisply after that last pull.
This engine has our standard clearances on Street/Strip engines or
between .002 and .0025 clearance on rods and mains. Even after clipping
the "white" spring two rounds it has 73 lbs of oil pressure at 5,500 RPM.
Randy will be sending some pictures in a few weeks of his car with its
new power plant.