509? Big Block Chevrolet built by Pfaff Racing Engines

[BUSTI]

SOLD! 509 Big Block Chevrolet built by Pfaff Racing Engines. Roughly 35 hours run time after build. Engine was broken in on the Dyno and then tuned on the Dyno. Dyno sheet provided.

Engine made 577.4 ft-lbs @ 4,400 RPM and 563.6 HP @ 5,693 RPM.

Engine was built with lower compression as I was planning on installing a Blower or Whipple at a later date. Now my projects are going in a different direction.

?GEN V 8.2/502 Block, 0.030? over bore
?8.6:1 JE 4.500? pistons
?6.135? Manley H-beam rods
?4.00? stroke GEN V 502 GM forged crankshaft
?Mellings high volume oil pump
?Dooley 10 quart V-drive oil pan
?Clevite bearings
?JE piston rings
?320cc Merlin rectangle port cylinder heads

• 118cc combustion chambers
• Pocket port
• Bowl blend
• 2.300? Stainless steel intake valves
• 1.88? Inconel exhaust valves

?Paul Pfaff valve covers
?Cloyes billet timing chain
?Crane hydraulic roller camshaft

• Grind number HR230: 230* duration int. / 236* duration exh. / 114* lobe separation / .598? lift int. / .610? lift exh.

?Competition CAMs hydraulic roller lifters
?4130 Manley pushrods
?Competition CAMs gold roller rockers
?Polished single plane intake manifold
??? JOMAR carb spacer
?850 Holley double pumper
?Stainless steel flame arrestor
?MSD marine distributor
?1? Magnaflow CAM driven water pump
?GM balancer
?GM steel flywheel
?IMCO GEN V timing cover with water pump drive

Note: Exhaust not included

Price $6,800 OBO

Call or PM me with any questions. 714-588-7086

 

[BUSTI]

TTT

 

[Jed-O]

Nice! Wish it was in my budget.:bowdown:

 

[BUSTI]

Nice! Wish it was in my budget.:bowdown:

It is. Just OBO.

 

[rivrrts429]

What did it do on hp after 4,400? Looks like it kept going on the tq numbers. Maybe a typo?

 

[Jed-O]

It is. Just OBO.

Sending a PM...

 

[satellitemike]

I may be ready to repower or refresh my 502. Any idea what it would cost to refresh, 440 hours on it? Would it bolt right up or would out require $$$ to make the swap?

 

[Instigator]

What did it do on hp after 4,400? Looks like it kept going on the tq numbers. Maybe a typo?

You should jump on this deal. All you would need is exhaust and a couple of carbs and the huffer and your new sled would be back in the water over this next weekend. The horsepower and torque numbers would be way better too.
You can't buy the parts for much less than what he is asking.

 

[rivrrts429]

You should jump on this deal. All you would need is exhaust and a couple of carbs and the huffer and your new sled would be back in the water over this next weekend.
You can't buy the parts for much less than what he is asking.

Ya, but I need it to make power to 6,000 RPM's lol

 

[Instigator]

Ya, but I need it to make power to 6,000 RPM's lol

It will....with big enough carbs and the right pulleys.
Start with a 58 bottom and a 43 upper and don't worry about the idle surge. It will sound like it is just pissed off and ole RD will be grinnin when you take him for a ride.

 

[rivrrts429]

It will....with big enough carbs and the right pulleys.

Lmao... Pretty much [emoji2]

I already have the short block. Was more curious than anything on his numbers.