BluePrint Engines Builder Series 306CI Crate Engine and 4R70W Auto Trans Package| Small Block Ford Style | Dressed Longblock with Carburetor | Aluminum Heads | Roller Cam
Part #: B306K4R7
IT ALL COMES DOWN TO RESULTS
We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That's precisely why our engines sound and run better than our competitors.
BRAGGING RIGHTS INCLUDED!
A Comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. No more guessing or wondering what your installed engine's real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash 'em your dyno results! Recommended Fuel: 91 Octane
The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque. We give your BluePrint engine the industry's best-in-class warranty for 30 months or 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations, is fully transferable, and covers engines worldwide.
- HP & Torque: 370 HP / 350 FT LBS
Compression Ratio: 9.5:1
Hydraulic Roller Cam
Cast Steel Crank
- Hand picked seasoned block
Square and parallel decked
Align honed main bearing bore
Cylinders honed on computer controlled machine to within .0002 straightness and roundness
Cylinders are sonic tested for thickness
4.000" Bored .040" Over
1-Piece Rear Main Seal
Mech fuel pump provision: Yes
- Ford, machined and balanced by BluePrint Engines
OEM type 5.090” connecting rods
50oz External balance
- BluePrint Aluminum Cylinder Heads -HP9009
2.02" intake/1.60" exhaust valves
190cc intake/60cc exhaust runners
- Cam Type: Roller
.543 Intake .554 Exhaust
218 Intake / 226 Exhaust duration
@ .050 - 112 degree lobe separation
- 34 Degrees Total at 3500 RPM
Spark plugs and wires
Painted oil pan
Dyno test results shipped with engine
ASSEMBLED W/ COMPLETE 4R70W AUTO TRANS PACKAGE:
Includes Electronic Transmission Controller
Transmission built to 650 HP
2200-2600 Stall Torque Converter
4 Speed, Overdrive transmission w/Lockup
ACCESSORY DRIVE INSTALLED AND INCLUDED
Front accessory drive with A/C and PS included
- 30 month / 50,000 mile
Note that 4R70W transmission may require modifications/replacement of driveshaft, transmission mount, exhaust routing, etc.
- Not for use in pollution-controlled vehicles.
*A bronze distributor gear is NOT recommended on this engine
- Does not include TPS, as varies with carb or EFI type.
PACKAGE SHIPS ASSEMBLED AS PICTURED.
IF THIS IS BEING ORDERED FOR A FACTORY FIVE VEHICLE,
STOP AND CALL US AT 1-800-483-4263 FOR PROPER FITMENT
OR VISIT FACTORYFIVEENGINES.COM