Originally Posted by geggen

do you think this props they sell on ebay is good? ore do you recomend an 3 blade prop?

http://www.ebay.com/itm/CUTTING-EDGE...e23fd0&vxp=mtr

my engine is not supercharged

Engine Parts Of America
Custom Engines By: Jerry Long
Technical Assistance: Call (785) 408-2911 or e-mail: [email protected]

540ci BBC Engine Spec Sheet
Estimated Peak Hosepower @5200rpm = 693 horsepower
Estimated Peak Torque @5251 rpm = 700 ft lbs
Owner: Geir Langeland
SPEC SHEET:
Block: GM Gen VI 4.500 bore 4-Bolt Main
Pistons: ICON 4.500 2618 alloy forged flat top
Static Compression Ratio Before Boost: Approx 9.5:1
Crankshaft: Scat 4340 alloy forged 4.250 stroke 1-PC seal (Internally Balanced)
Connecting Rods: Scat 4340 alloy forged 6.385 length w/ .990 bushing H-Beam ARP 8740 cap screw
Heads: Custom 310cc large round intake port/ 119cc combustion chamber, ARP rocker studs, Ferrea 2.250 stainless intake valve, SI 1.880 stainless exhaust valve, Dart adjustable guide plates,
Rocker Arms: Scorpion 1.8 ratio aluminum full roller
Camshaft: Comp Cam Custom grind Hydraulic Roller: Type of Lobe: Extreme Energy Intake Lobe #3314 Exhaust Lobe #3314, Intake duration @.050 224 = degrees Exhaust Duration @ .050 =224 degrees
Intake Lift x 1.8 rocker = .683 gross intake lift
Exhaust Lift x 1.8 rocker = .683 gross exhaust lift
Oil Pump: Melling M77 Standard Volume High Pressure w/ GM pickup
Harmonic Balancer: Power Products ( Neutral Balance)
Flex Plate : 168 tooth (Neutral Balance)
Timing Set: Comp Cam High Energy
Lifters: Howards Vertical Bar Hyd Roller Lifters
Oil Pan: GM Wet Sump , 7 Quart
Intake: Aluminum dual plane large round port
Valve Covers: Custom Fabricated w/ Chevrolet Logo
Timing Cover: Aluminum Gen VI
Pushrods: Hardened tip

Originally Posted by articfriends

Somebodys blowing sunshine up your arse,this combination will be lucky to make 620 hp IF that. I don't know why someone would use a single pattern cam with only 224 degrees at .050 and then .683 lift. Buy a 26 LABBED, you will not be turning much more prop than that. It would take 30 degrees more duration and motor would have to be turned alot closer to 5800-6000 to think about making 700 hp , Smitty

Originally Posted by geggen

i am thinking about an 5 blade

Cutting Edge Series III 5 Blade Labbed Cleaver Propeller

cutting edge 5 bladeManufactured from stainless steel one piece castings, then hand labbed, Cutting Edge Series III, 5 Blade Labbed Propellers are manufactured with strength and accuracy in a one off environment. Each propeller is tailored exclusively for the customer’s individual hull type, power and performance requirements.

Available in both right and left hand rotation as well as matched sets. Sizing availability ranging from 14 3/4” - 15 11/16” diameter with pitch available in one inch increments, odd or even from 22” to 36”. Polished or race prepped satin finish available.

Not a propeller for the faint of heart! Blistering top end performance and seat stabbing hole shot as well as increased mid range speeds are experienced from this large hub 5 blade cleaver with razor sharp edging and aggressively pointed tip design. In testing, this is our fastest propeller yet! Blade tips can be rounded slightly for swimmer safety. Comes on plane easier and sooner while staying on plane longer, this labbed propeller excels in all areas of high performance.

http://cuttingedgepropellers.com/our-props


can i buy this in 26 pitch to? ore do i have to go down to 24-25 pitch.
ore do you recomend an 4 blade prop?