Vehicle Weight:
Engine
1975 Pontiac 455 (stock bottom end)
Compression Ratio: 10:1 approx.
Cylinder Heads: 1970 Ponitac 400 heads
#16
2.11/1.77 Manley Stainless Steel Valves
Pocket Ported, Polished, Bowl Blendedl(thanks Steve, awesome job)
Big Block Chevy 7/16 Screw In Studs, CompCams Magnum 1.6 Roller Tip Rocker
Arms
Camshaft: Comp Cams 274xtreme Cam
274/286 Adv. 230/[email protected] .488/491 110 LCA
Induction: Edelbrock Performer Intake,
Holley 700 Double Pumper
Igniton: Stock Points converted to
GM HEI, Recurved Timing Curve, Adjustable Vacuum Advance,
ACCEL 300+ Race Wires
Exhaust: Headmen Hedders 1 3/4 in.
primaries w/ 3 in. collectors, stock 2 1/18in pipe with turbo mufflers
Transmission
Stock TH350 w/ 2000 stall converter
and B&M ShiftKit Stage 2
Rear End
Stock 2.73 gear, open
Future Mods: A built TH350 with shift kit and 2500 converter, the stock one isn't long for this world. 2 1/2 exhaust with 2 Chamber Flowmasters. He was going to put 3 in exhaust on it but decided it would be wayyyyyyy to loud because Kevin drives the bird alot. Perfomer RPM Intake and tune carb. Posi 3.55 Rear End. 8 point roll cage and subframe connectors.
Misc.
This car his been in my garage for
two years or so. It started out as a summer project. Like most summer
projects of this kind it evolves into a bigger beast and takes longer.
The car had had plans of a Pontiac 350 and then a 400. Then a Chevy 350
was going to be put in it, but then Kevin found the 455. I think
he is very happy that he went with the 455, especially when you put it
to the floor anything below 40 mph and it starts smoking tires. I admit
that is pretty damn cool. We learned alot about the car as you can imagine.
No one I know builds Pontiacs so building the engine was a learning experience
in itself. Putting the engine together was enough to make me crazy. A big
big thanks to my boss Vic for watching over our shoulders as we put the
engine together. Pontiac's in stock form have a non adjustable vavle
train which poses a problem when putting in an aftermarket cam with a differcnt
base circle size. Kevin ordered the conversion kit from CompCams which
consisted of rollertip rocker arms, pivot balls and pushrods. Their theroy
is to put a different type of pivot ball on the rocker arm stud, then the
roller tip rocker arm and a 3/8 lock nut. After the engine was assembled
we put the valvetrain on I noticed the studs where not long enough. Maybe
one or two threads stuck through the nut. I was not comfortable with this
at all. We went ahead and put the engine in the car(which was a big mistake,
we should have waited and done some more research first) As I said before
no one around here builds Pontiac's. So I got on the phone and started
calling big Poncho guys out of Ponitac High Performance(A big thianks to
Jim Butler at Butler Performance, he was extremely nice and very helpful)MORE
TO COME!!!