hey guys i am currently looking to go 383 in my lt1 n came across this from jasper.. this lis of parts is a general over view.. but it will be for my lt1 so it wont be carb etc.. but let me know what you all think ok here it is ..

Jasper Performance
Products
“Class II Version - Chevrolet 383”
Version Description:
The Class II Performance engine is for the serious performance minded person who needs power for a
specific application. These engines are built with heavy duty performance in mind. Special components
and procedures are selected and matched to obtain maximum performance for your application.
Not legal for sale or use in California or on pollution
controlled motor vehicles. Specifications subject to
change without notice.
385 hp (approx.) @ 5000 rpm • 440 ft. lbs. Torque @ 3500 rpm
Version Applications:
• Performance oriented cars and trucks
• Street Rods and restored muscle cars
• Small/medium size engines requiring
good low speed torque
• O.E.M. replacement
Part Specifications:
• Forged steel crankshaft
• Approximate 9.4:1 compression ratio
• High performance rod bolts and nuts
• High rev lifters and performance valve
springs with retainers
• High volume oil pump
• Double roller timing set
• Flat top hypereutectic pistons and moly rings
• Harmonic balancer
• Dart S/S Heads
• Screw in rocker studs
• High performance stainless steel valves:
2.02 intake; 1.60 exhaust
• Class II camshaft
• High performance bearings
• High performance head gaskets
• Four bolt main block
Machining Specifications:
• Kolene Salt Bath cleaning
• Three angle valve seat machining
• Precise surface finish measuring
• Square decking of block
• Main saddle align honing
• Electronically balanced engine assembly
• Torque plate honing
• Computerized boring
• Precision crankshaft machining, oil hole
chamfering and polishing
• Live testing
Camshaft Specifications:
• Hydraulic Camshaft
• .050 Duration: 224° Intake; 234° Exhaust
• Advertised Duration: 298° Intake; 308° Exhaust
• Cam Lift: .310 Intake; .325 Exhaust
• Valve Lift: .465 Intake; .488 Exhaust
• Lobe Center: 107° Intake; 117° Exhaust
Camshaft Range Guide and Recommended
Equipment:
• Fair idle with lope
• Operating range of 2200-5500 rpm
• Good Midrange torque and response:
3000-4000 rpm range
• Mild bracket racing suitability
• Stock automatic or manual transmission compatibility
• Recommended 3.70:1 axle ratio
• Stock or aftermarket 2 plane or torque type intake
manifold recommended
• 4 barrel 750 cfm aftermarket carburetor
recommended; rejetting may be necessary
Engine Options Available:
• Magnum roller tipped rockers
• Aluminum roller rockers
• Performer RPM intake installed
• Steel crank
The “383” JASPER PERFORMANCE Engine was tested with
headers, Edelbrock Performer RPM manifold and 750 cfm
Edelbrock carburetor. Readings taken at SAE standards.
The manifold and carburetor are not included with the
engine, but are available for an additional charge. Headers are not
available.
6/03 NOL
815 Wernsing Rd • P.O. Box 650 • Jasper, IN 47547-0650
800-827-7455 • Fax 812-634-1820 • www.jasperengines.com

 

Take a look at Golen or one of those man.'s of rebuilds...

 

do you have a link?

 

www.golenengineservice.com

 

I definitely recommend Golen. They built my blown 383. It runs like a champ

 

ill check them out..