rssteiny

can anyone give me all the specs of a stock 2000 500 hp carberated.

cam specs
intake runners
cc of heads
valve size
spring pressure

and antyhing else thanks 32 thunder rick

TylerCrockett

iTrader: (1)

It uses the Crane 731 cam it has 320-325 intake runners. The combustion chambers are 118 and they have 2.250 Intake 1.880 Ex valves. They have about 150# seat presure at 1.900.

rssteiny

THANKS TYLER AND ILL BE IN TOUCH ON MY REBUILD

SB

iTrader: (1)

For Gen VI HP500's cam I have the following in my notes:

Merc HP500 Carb
Crane Gen VI#169611 Grind#HR-284-2S-10IG
Adv 284, 292 at .004” Lift with 1.7 .576 / .598
At .050” 222, 230
ICL 105, ECL 115
LSA 110

Part Number: 169611 Grind Number: HR-284-2S-10 IG
Engine Identification:
Start Yr. End Yr. Make Cyl Description
1996 Up CHEVROLET 8 HYD. ROLLER WITH CAST IRON DISTRIBUTOR DRIVE GEAR
Engine Size Configuration
454-502 C.I. V

Valve Setting: Intake .000 Exhaust .000 HOT

Lift: Intake @Cam 339 @Valve 576 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 352 @Valve 598
Rocker Arm Ratio 1.70

Cam Timing: TAPPET @.004
Lift: Opens Closes ADV Duration
Intake 33.0 BTDC 71.0 ABDC 284 °
Exhaust 77.0 BBDC 35.0 ATDC 292 °

Spring Requirements: Triple Dual Outer Inner
Part Number 99896
Loads Closed 150 LBS @ 1.900 or 1 29/32
Open 441 LBS @ 1.330
Recommended RPM range with matching components
Minimum RPM 2500
Maximum RPM 6000
Valve Float 6500

Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 6.0 BTDC 36.0 ABDC 105 222 °
Exhaust 50.0 BBDC 0.0 BTDC 115 230 °

Remarks:
CRANE 16535-16 LONG TRAVEL HYDRAULIC ROLLER- LIFTERS MUST BE USED WITH GREATER THAN .570 LIFT CAMSHAFTS TO PREVENT ALIGNMENT BAR DISENGAGEMENT.

Active Mike

rssteiny,
Give Mercury racing a call. 1-920-921-5330 is their prop shop but some one there should be able to hook you up to their engine shop.

Mike

Griff

What TC said except the 500HP cam is the one posted by SB.

awsomethunder

is this based off a 454 or 502?

cuda

502

BajaRunner

what he said, the crane 731 is actually an upgrade in an hp500.

89scarabIII

What is necessary to upgrade a stock 502 to 500hp specs?