Vehicle Description
1966 CHEVROLET BISCAYNE L72 4 SPEED. SPOKEN OF IN HOTROD STORIES
FOR DECADES BUT SELDOM SEEN TODAY AND THIS ONE IS A BEAUTIFUL
EXAMPLE WITH IT'S NUMBERS MATCHING 427 425HP ENGINE MATED TO A
MUNCIE 4 SPEED AND ULTRA RARE 12 BOLT POSITRACTION REAR END WITH
COPO METALLIC BRAKE OPTION. THE PAINT AND BODY WORK IS OUTSTANDING
HERE ARE A FEW FUN FACTS OF THESE RARE BEASTS AS TOLD BY HEMMINGS
MOTOR NEWS. L72 427 engine was rated at 425hp at 5,600 RPM and
460-lbs ft of torque at 4,000 RPM. Its bottom end featured a
4.251-bore four-bolt-main block casting #'s 3869942, forged steel
3.76-inch stroke crank with hardened journals, 6.135-inch
high-alloy forged steel rods and impact-extruded forged aluminum
domed pistons. A/C was not available for the high-strung L72. It
also had a rumpety-rump 750 to 850 RPM idle speed when most other
Chevy engines idled at 500 RPM. Even the L36 390-horse 427 idle
setting was 550-600 RPM. Verify a correct engine, a two-letter
block code can be found on a pad just ahead of the passenger-side
cylinder head, and is preceded by the engine plant code, "T" for
Tonawanda, and build date consisting of two digits for the month
and two for the day. The code for the 427/425hp L72 in a '66
full-size Chevy is "ID"; that engine is backed by a manual
transmission. Documented L72 Biscaynes normally seen have
four-speed transmissions, the AMA forms and Chevy paperwork states
that the M-13 heavy-duty three-speed manual was standard. The M-20
wide-ratio four-speed, the M-21 close-ratio four-speed and the M-22
"Rock Crusher" heavy-duty close-ratio four-speed were optional. Two
M-22s were installed in full-size cars for '66. Please Note The
Following **Vehicle Location is at our clients home and Not In
Cadillac, Michigan. **We do have a showroom with about 25 cars that
is by appointment only **Please Call First and talk to one of our
reps at 231-468-2809 EXT 1 **
