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Old School HP500
Educate me on the Carbed HP 500 Blue engines. My intent would be to build a clone. What would an approximate cost be?
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All depends on the heads and rotating assembly you are going to use. Id guess 15 - 20k to do it right
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I would suggest using the 500EFI cam instead of the reversion prone HP cam. Still have some nice parts from my HP500 that will be going up for sale soon. Valve covers, circulating pump with blue pulley, blue 3 groove crank pulley and Gil/Merc exhaust manifolds.
https://cimg4.ibsrv.net/gimg/www.off...d6e3bb9336.jpg |
Bottom end is the same as a 502mag. GM forged crank, rods, pistons. 8.75:1 compression.
GM rect port heads with I think 2.25 intake and 1.88 valves. Crane gold roller rockers. Cam specs are out there, but stock cam had reversion issues. Better off to use a 500efi cam or 525EFI cam. Teague has copies of both. Dart single plain intake and Holley 800cfm carb. Gil Exhaust and some expensive blue paint If you're starting from scratch, better off to make it into a 540ci |
Originally Posted by Griff
(Post 4901760)
Bottom end is the same as a 502mag. GM forged crank, rods, pistons. 8.75:1 compression.
GM rect port heads with I think 2.25 intake and 1.88 valves. Crane gold roller rockers. Cam specs are out there, but stock cam had reversion issues. Better off to use a 500efi cam or 525EFI cam. Teague has copies of both. Dart single plain intake and Holley 800cfm carb. Gil Exhaust and some expensive blue paint If you're starting from scratch, better off to make it into a 540ci |
Quoting myself :)
Originally Posted by SB
(Post 1983584)
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. |
Originally Posted by jeff32
(Post 4901782)
and why a 540? For futur mod?
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and not a tall deck block. Helps if its a twin.
Originally Posted by SecondWind
(Post 4901792)
Free horsepower I believe is the concept. You're not going to stress the moving parts anymore with larger displacement and it will make more power. The more displacement argument in a boat just keeps getting better when you start modifying the engine with things like forced induction.
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Originally Posted by jeff32
(Post 4901782)
and why a 540? For futur mod?
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Originally Posted by sutphen 30
(Post 4901803)
no replacement for displacement.:)
15000.00 Ron 504-616-6005 |
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