JBA PERFORMANCE ENGINE - STAGE III

Stage III: High performance street and strip packages:

Designed and engineered to deliver race engine performance in a street friendly package. JBA Stage III engines are built for your specific application. Our engine packages utilize our machine shop’s capability to modify and test parts using a “whole engine” approach. Our racing experience enables us to select proven combinations, eliminating the guesswork. Stage III engines use only the highest quality, race-proven parts on the market. Some of these include Dart, Ford Racing, Shelby or World products engine blocks, AFR or Dart cylinder heads, Ross pistons, Total Seal Rings, Ferrea valves, Crower and Comp camshafts and valve train components, Scat, and Carillo crankshafts, Clevite bearings, Moroso or Aviad performance oil pans, and Holley, Fast, Vortech and Procharger induction systems are used specifically for our Stage III engine packages. JBA’s Stage III packages are built and tuned to give you unequalled performance for your hot street or weekend warrior.

Engine Block:

Superior alloy factory block or aftermarket 4-bolt main block used.
Align-honed for straightness and exact main Bearing clearance
Bored 90 degrees off crankshaft centerline
Torque plate honed for proper ring sealing
Square decked to exact deck height 90 degrees Off crank centerline
Mocked up and clearanced for long stroke or rod Combinations
ARP hardened bolts or stud kits
Custom detailed: de-burring of casting flash
Tap oil galleys and bolt holes
Painted to customer’s requested color

Cylinder Heads:

Aftermarket: AFR, Edelbrock, Dart, Trick Flow or other popular brand
Performance 3-angle valve job
Valve guide sized to exact specs.
Mild porting
Intake-to-cylinder head match
Mild runner port work
Combustion chamber detailed
Valve is faced, back cut and hand lapped

Crankshaft:

Aftermarket: Callies, Scat, Crower or other popular brand
Forged steel
Internally balanced
Micro-Polished

Connecting Rods:

Aftermarket: Manley, Scat, Carillo, Crower or other popular brand
Forged steel
ARP or other hardened rod bolts
Big & small ends checked for specific bearing clearance and pin fit
Weight matched to within .5 grams

Engine Assembly:

Balanced & Blueprinted
Critical tolerances measured & documented including:
Rod & main bearing clearance, paired rod side Clearance, valve-to-guide clearance, installed height
And spring pressures, cylinder head flow numbers, Piston-to-bore clearance, installed ring gaps,
Deck height, piston-to-valve clearance, balance and Bob weight
Camshafts degreed & installed
Trial assembled to check clearances on long stroke Or rod combinations
Assembled and quality control checked
Engines broken in under load using JBA’s DTS Powermark Dynamometer
Engine tested and tuned for maximum performance Using JBA’s DTS Powermark Dynamometer

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