This is my most popular Small Block Ford 347 Stroker Engine Combination
If you are trying to buy the most power with reliable parts for the least money, this is what I have come up with.
The cast steel/iron crank is strong enough for the street.
I'd recommend stepping up to forged steel if you plan to drag race on slicks or run a
lot of nitrous oxide.
It has forged pistons so you can run upto a 200Hp shot of N2O
The rods are Scat's 4340 steel with cap screw bolts. They can handle 7000rpm, cheaper 5140 rods can not.
To keep the cost down I use import aluminum heads, but if you have the money the AFRs will make a big difference.
How much power?
Torque is what is important and is easily calculated based on experience with particlar heads.
The import heads will deliver at best about 1.2lbs/ft per cubic inch, the AFRs about 1.3.
Therefore 347 X 1.2 = 416Tq 347 X 1.3 = 451Tq
Horsepower is a function of RPM. Have more camshaft duration means keeping the valves open longer.
This moves the efficency up the RPM scale causing the idle to become rougher loosing vacuum and low speed torque.
Have better heads allows you to use less duration to make the same horsepower as not so great heads, but keep more torque down low.
A 10:1 compression ratio 347 using 230/236 duration at @ .50" lift with Avenger 190cc heads will only make 325Hp 420Tq and the bigger 210cc version 370 and 430Tq
while the AFR 185 will deliver 450Hp with 460Tq.
The 210cc heads will make 450Hp, but need more duration to rev to 6000rpm and over.
$750 Seasond Machined 302 HO Roller Cam Block
$200 Main Support Girdle
$250 Cast Iron 3.4 Crankshaft Upgrade to Forged STEEL CRANKSHAFT 4340 Add $350
$315 Scat 5.40 4340 Connecting Rods
Icon VMS-75 alloy Forged Pistons 10.2:1 with 58cc Heads
Many Piston upgrades available
$80 Plasma-Moly Rings Set
$180 Balance Crankshaft
These King SI-Series rod bearings are recommended for OE applications. These rod bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. These King SI-Series rod bearings have an improved finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. These King SI-Series rod bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.
$100 Bi-metal, silicon aluminum Main Bearings Rod Bearings Cam Bearings
$75 Harmonic Balancer 28oz
$65 Flexplate 28oz
$350 Assemble Short Block
(Short Block $2850)
Available as a 331 9.8:1 CR
$200 Trickflow Roller Camshaft
$150 Ford Racing Hydraulic Roller Lifter
$40 Comp Cams Lifter Retention Kit CC31-1000
$40 Timing Chain Set
$1000 RPC Aluminum 185cc Heads At .500 lift In 213cfm Ex 171 or 210cc .500 In 223cfm Ex 171
AFR 185cc 58cc Add $450 .500 In 267cfm Ex 185cfm Add $525
Comp Cams Rockers $180
$80 2 Fel-Pro Head Gaskets .040"
$65 ARP Head Bolts
$150 Install Heads & Valve Train
(Long Block $4820)
$210 Edelbrock RPM Intake Manifold 7121
Airgap Add $50
$35 Melling Std Volume Oil Pump
$15 Melling Oil Pump Pickup
$20 Oil Pump Drive
$50 Chrome 5quart Oil Pan
$5 Oil Filter
$50 Assembly Bolts
$60 Valve Covers PCV Breather
$90 Timing Cover
$20 Fuel Pump Eccentric
$220 Summit Ready To Run Distributor 850303
$10 Distributor Hold Down Clamp FMSM12270-A302
$40 MSD Coil 8202 With Chrome Mounting Bracket
$40 8mm Plug Wires 868111
$30 Wire Separators SPC2342
$20 NGK Spark Plugs
$70 Holley Fuel Pump HLY12-854
$360 Holley Avenger 670cfm Carburetor
Many carb upgrades available
$30 Chrome Air Cleaner
$40 Iron Water Pump
$20 Thermostat Cover & Thermostat R9440 180
$150 Assembly Completed Engine LAB-SBF06
$300 Test Run Engine LAB-SBF08
$300 Alternator Package Chrome 100amp Billet Bracket Chrome Steel Pulleys Vee Belt Installed