1971 Chevrolet Chevelle Malibu Resto Mod, muscle car , hot rod For Sale
1971 Chevrolet Chevelle Malibu Resto Mod, muscle car , hot rod
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In June of 1971, the Chevelle Malibu was purchased
brand new with a heater delete at Beyerl Chevrolet in Monroeville, PA. by a
couple named Gibson. After a year of
driving, the wife passed away with the odometer displaying 2060 miles. Mr. Gibson parked the car in the garage where
it stayed for 20 years. In 1991, a
gentleman by the name of Cal Nicholson, a GM technician who at the time was
working in the research and development section of the High Performance
Division of GM purchased the car at an estate sale and the odometer had not
budged. The car sat for a period of time
until Cal had developed a scheme for the car to be a rolling test bed. GM Motorsports had developed the splayed
valve small block for GTP racing. The
development showed great promise in the early nineties but soon after GM pulled
out of the GTP program, leaving the program without a core group of customers. Enter Cal Nicholson, Cal began to examine the
possibility of a detuned version of the GTP motor having potential on the
street. Cal knew that he wanted the
Chevelle to be a rolling test bed for the engine at which time the car was
completely torn apart for the rebuild. Cal
initiated the build by accessing the shelves of GM performance parts and other
go fast parts to create one of the hottest Resto-Mod Sleepers around with no
tubs, no billet and no roll cage but just a powerful engine, Richmond 6 speed
transmission and a super duty suspension underneath a clean bold body.
The GTP motor produced well over 750 HP with a large
torque curve to push the Chevy-Spice and IMSA cars around the road courses they
raced. The GTP engine featured Chevy’s
splayed valve heads that hold huge 2.20/1.65 valves and have symmetrical intake
and exhaust ports. Cal had Katech
Engineering assemble a lightened steel Moldex 3.700 inch stroke crankshaft,
Carrillo rods and streetable 10.1 J.E. pistons.
The racing roller cam was replaced with a more street-wise but equally
trick Isky roller cam unit spinning on needle bearings in the block. A Jessel
timing belt and Moroso external oil pump round out the short block. A custom camshaft and intake are required for
the splayed valve block.
The splayed valve heads became the big story with this
engine. The splayed valve cylinder head was developed by GM as a V6 head design
to be used in IMSA GTP racing but the rules changed allowing V8 engines in the
GTP. The heads angle the intake valves
16 degrees to the deck surface, and splays them 4 degrees. Exhaust valves are angled 11 degrees and
splayed 4 degrees as well. Essentially,
the valve configuration improves the alignment of valves with their respective
ports, utilizing the valves with their respective ports and greatly improving
the air flow. These splayed valve heads
can be purchased BUT YES A BUT the splayed valve cylinder heads on the Chevelle
are proto type created by Cal Nicholson for street use. I spoke with Cal about
a year after purchasing the car and he advised me that there are only two sets
of the proto type heads in existence with one set on the Chevelle and the other
in his possession. The GM heads were
fully ported by Diamond Racing Engines and fitted with titanium 2.12 inch
intake and 1.62 inch exhaust valves, Isky triple springs, Jessel roller
rockers, and Del West titanium retainers for valvetrain strength. The valve covers were custom fabricated by
SB2 complete with oilers. Cal had Hogan
Sheetmetal custom fabricate a race bred all aluminum intake to fit the block
and to mount the 830 double pumper Holley prepared by the Carb Shop. The 830 Holley is fed by a Mallory pump using
finelines stainless steel lines. The GTP
engine is not set up for a wet sump so Cal designed and had a custom dry sump
fabricated. A Stock Car Products single
stage pump draws from a Moroso 8 quart pan. Cal maintained the racing theme with CV products
style NASCAR pulleys driving all the accessories including a power steering
pump reworked by Street Manufacturing and a Stewart water pump with a Griffin
aluminum radiator. Other engine goodies include an ATI balancer, MSD ignition
components light the fire GM Motorsports plug wires and AC Delco racing spark
plugs continue the NASCAR theme.
Jon Little Race Car Engineering fabricated and built
the 2in. headers that dump into a three inch exhaust system built by Flowmaster
all of which were jet hot coated.
With the engine oozing race technology, Cal knew he
needed something strong to back up the horsepower so he added a Richmond
six-speed transmission with a Centerforce clutch that is controlled by a Long
Shifter. The stock rear was replaced with
a custom fabricated 9 inch rear custom fabricated by Moser Engineering with a
custom fabricated Strange Engineering 12 bolt style center section.
Cal had the
suspension rebuilt with the front suspension built from B body spindles and
tubular A-arms. Hotchkis suspension parts and Koni shocks were used front and
rear to have the Chevelle handle perfectly with all of the power. Cal added Baer Racing 12 and 13 inch disc
brakes with 1996 Corvette 17inch Grand
Sport wheels that Vaughn Engineering modified the offset for the wheels to fit
the Chevelle and had them spinning on Z rated BF Goodrich 255/50-17.
Cal wanted to leave the interior stock in true sleeper
form. He had Heagy Upholstery in York,
Pennsylvania replace the interior GM stock and he kept the stock steering wheel
and radio. The paint was stripped down
to the factory primer and the wheel well and rocker panel moldings were removed
and Cal had Hanover Auto Craft spray the Chevelle in an original shade of PPG
blue metallic lacquer. The only modification to the interior is the GM Auto
Tech meter and gauges.
As you have read, there are several one off features
that Cal included in the build of this car.
Cal Nicholson was a visionary car builder who was part of the team that
developed the Zo6 Corvette, he developed the first big block for GM the 502 and
I have other information concerning and illustrating his expertise. As the car sits now, it has only 3500
ORIGINAL MILES with about 1400 miles since the build was completed. I am the third owner including Cal and the
car has been in my possession for 19 years.
It has not been raced nor has it been exposed to inclement weather. The car is started and driven short distances
occasionally after which it is covered and stored in a bubble that circulates
air 24x7. I have documentation for the
mileage to include the magazines which featured the car, the dyno sheets from
Katech Motors, a notarized paper from the original owner documenting the
mileage, a copy of the original Pennsylvania title and other papers. The block does have a bowtie stamp. A brief note about Katech motors located
outside of Detroit, Michigan. They build motors and other parts for Indy cars,
24 hours LeManns, NASCAR, and many other circuits.
In closing, it is time for someone else to own this
very special car that in my humble opinion cannot be duplicated. I am receptive to negotiating with a
legitimate serious buyer. I can provide
more detailed photos upon request.
Purchasers will be responsible for shipping charges
Email: firstname.lastname@example.org Thank you for looking, Steve