Custom Classic TrucksMagazine Homepage Custom Classic Trucks
Get Adobe Flash player

351ci Windsor Small-Block Ford - Pump up the Volume

Stroking Gobs of Torque and Extra Ponies Out of a Ford Small-Block
137 0502 Smed 01 Z
Fresh from the machine shop... 
   
  read full caption
137 0502 Smed 01 Z
Fresh from the machine shop centers and engine build room within the Smeding Performance showroom, both brand-new Chevy and Ford stroker engines are on display.
137 0502 Smed 03 Z
From a bird's-eye view you... 
   
  read full caption
137 0502 Smed 03 Z
From a bird's-eye view you can see one of the differences between the stock .030-over piston on the left and the .030-over 427ci stroker forged-alloy dished piston on the right. The stroker dished piston accommodates various valve sizes from the different aftermarket high-performance aluminum head manufacturers.
137 0502 Smed 04 Z
Notice the stock .030-inch-over... 
   
  read full caption
137 0502 Smed 04 Z
Notice the stock .030-inch-over piston on the left has a wider piston skirt than the .030-inch-over 427ci stroker forged piston on the right, which is one of the ways the stroker piston achieves more cylinder volume. The lightweight forged stroker piston is also coated with Duroshield to reduce friction and increase piston life, and it is designed with the wrist pin below the oil ring for superior oil control.
137 0502 Smed 05 Z
On the left, the cast-iron... 
   
  read full caption
137 0502 Smed 05 Z
On the left, the cast-iron stock connecting rod pales in comparison next to the 4340 steel with 7/16-inch ARP-cap-bolts-equipped stroker connecting rod on the right. The stock connecting rod is 5.956 inches in length center to center, while the stroker connecting rod is 6.125 inches in length center to center.
137 0502 Smed 06 Z
Compared with the stock performance... 
   
  read full caption
137 0502 Smed 06 Z
Compared with the stock performance crankshaft on the left, the "long arm" stroker crankshaft on the right is comprised of 4340 steel, provides a 4.170-inch piston stroke, and is balanced with a new 28-ounce flex plate and balancer.
137 0502 Smed 07 Z
Check out how much beefier... 
   
  read full caption
137 0502 Smed 07 Z
Check out how much beefier the stroker connecting rod bearing is on the right than the stock connecting rod bearing is on the left.
137 0502 Smed 08 Z
The custom ground hydraulic... 
   
  read full caption
137 0502 Smed 08 Z
The custom ground hydraulic roller Isky camshaft, as seen on the right, provides .544/.573 inches of lift and 238/248 degrees of duration at .050 inches.
137 0502 Smed 09 Z
Since the Smeding shop starts... 
   
  read full caption
137 0502 Smed 09 Z
Since the Smeding shop starts with brand-new Ford SVO Sportsmen II 351W blocks with non-Siamese bores for superior cooling and a one-piece rear main seal, the beefier Fel-Pro head gaskets are used (as shown on the right). In fact, the stock head gaskets don't work with the Ford Sportsmen II block.
137 0502 Smed 10 Z
For the 427ci Ford Smeding... 
   
  read full caption
137 0502 Smed 10 Z
For the 427ci Ford Smeding stroker engine, nothing less than roller lifters are good enough. Notice there are no rollers on the stock units on the left.
137 0502 Smed 11 Z
Stock 351Windsor intake valves... 
   
  read full caption
137 0502 Smed 11 Z
Stock 351Windsor intake valves are 1.780 inches in diameter (on the left), while the Edelbrock Victor Jr. aluminum cylinder heads, which are employed on the Smeding 427ci stroker engine, utilize 2.05-inch diameter stainless steel intake valves. The stainless steel exhaust valves are 1.60 inches in diameter (not shown).
137 0502 Smed 12 Z
Technician Tony Bagatelos... 
   
  read full caption
137 0502 Smed 12 Z
Technician Tony Bagatelos can pose for the camera and let the computer-controlled Rottler boring and decking machine do its thing. Tony programmed the boring machine to bore each cylinder .026 inches over. The base of each cylinder has already undergone minor grinding. This is done to clear the connecting rod bolts as they go by since a stroker crankshaft makes the throws swing wider.
137 0502 Smed 13 Z
After swapping the cylinder... 
   
  read full caption
137 0502 Smed 13 Z
After swapping the cylinder boring apparatus for the decking component, Tony programmed the Rottler boring and decking machine to take .007 of an inch off the engine block's deck height. Three passes were made for each deck. The first two took off .003 of an inch, and the final pass removed .001 of an inch to yield a 9.5-inch deck height.
137 0502 Smed 14 Z
Once the boring and decking... 
   
  read full caption
137 0502 Smed 14 Z
Once the boring and decking machine has done its work, the block was moved to the Rottler honing machine. Tony programmed the machine to hone out the final .004-inch from each cylinder to yield a bore of 4.030 inches. The Rottler honing machine utilizes industrial (man-made) diamonds to do the honing and special water-soluble (eco-friendly) cutting fluid. By using the race-team used/proven Rottler machines, fully blueprinted engine blocks are produced.
137 0502 Smed 15 Z
To balance the engine's bottom... 
   
  read full caption
137 0502 Smed 15 Z
To balance the engine's bottom end within 1 gram, technician Dan Moody weighed each component of the rotating assembly. Both the big-end and small-end of each component were weighed and recorded, and then all were overall-weight-matched to the lightest one in the group of eight.
137 0502 Smed 16 Z
Simulating each rod/ring/piston... 
   
  read full caption
137 0502 Smed 16 Z
Simulating each rod/ring/piston assembly, Dan bolted bob-weights to the crankshaft. Dan was about to spin the rotating assembly at speed. The computer revealed if there was any imbalance and how much.
137 0502 Smed 17 Z
After spinning the rotating... 
   
  read full caption
137 0502 Smed 17 Z
After spinning the rotating assembly at speed, the computer screen revealed that it was 150 grams out of balance (upper lefthand corner of screen). The green dot on the screen showed where weight needed to be drilled out of one of the crankshaft's counterweights.
137 0502 Smed 18 Z
To balance the rotating assembly... 
   
  read full caption
137 0502 Smed 18 Z
To balance the rotating assembly within 1 gram, Dan drilled 3 small holes in one of the crankshaft's counterweights. Remember, the computer screen also showed him where to remove the weight (the green dot).
137 0502 Smed 19 Z
Both the intake and exhaust... 
   
  read full caption
137 0502 Smed 19 Z
Both the intake and exhaust openings on the Edelbrock Victor Jr. aluminum cylinder heads have stepped valve seats. This picture reveals the stepped intake opening.
137 0502 Smed 20 Z
To remove the valve seat step... 
   
  read full caption
137 0502 Smed 20 Z
To remove the valve seat step in each of the 8 intake and 8 exhaust openings, Ben Smeding programmed the Newen Contour Epoc elite power contouring head machine.
137 0502 Smed 21 Z
Notice how much smoother the... 
   
  read full caption
137 0502 Smed 21 Z
Notice how much smoother the radius is of the intake opening after the Newen machine has smoothed the edge. Doing this headwork to all the intake and exhaust openings will add approximately 10 horsepower.
137 0502 Smed 22 Z
Around the spark plug openings,... 
   
  read full caption
137 0502 Smed 22 Z
Around the spark plug openings, the Newen machine cannot be used. No worries, Ben smoothed out the area the old-fashioned way.
NEXT PAGE >


Discuss in our Forums
GMC Yukon XL Research
GMC Yukon XL Finding a fuel efficient automobile today is easier than ever. Check out the GMC Yukon XL buyer's guide providing information on car specs, reviews and fuel economy. The 2009 Yukon XL is offered with your choice of V8 engine, and it has a comparable warranty. Other similar vehicles are the Ford F150 and the Ford Expedition.
Related Articles
 
Chevy & Ford Small-Block And Big-Block Engine Books - Web Exclusive
Check out the many books to help you build Ford or Chevy small-block & big-block engines for your classic truck.... more
 
1949 Studebaker Pickup Truck - Pete's Pop's Stude
Check out Pete Thomsen's 1949 Studebaker 1/2-ton pickup truck and how he took this old workhorse and restored it back to its classic state.... more
 
No-Limit Engineering - Classic Life
Check out the amazing restoration work being produced by No Limits Engineering!... more
 
Spoolmate 200 MIG Aluminum Welding Torch - Latest Products
Check out the new Spoolmate 200 MIG aluminum welding torch and its applications!... more
 
Blue Rage's Arc Armor Welding Helmet - Latest Products
Check out Millers Latest invention, the Blue Rage Arc Armor welding helmet featuring an auto darkening interface!... more
 
Miller's All-in-one Arc Table Workstation for Welding and Metalworking - Latest Products
Check out this incredible all-in-one arc table designed for both welding and metalworking!... more
 
November 2009 Classic Truck Parts - Classic Market Place
Check out the awesome new Classic Truck Parts available to help your poject truck!... more
 
1963 Ford F-250 Pickup Truck - Reader's Rides
Check out this classic 1963 Ford F-250 Pickup Truck.... more
 
1951 Ford F-1 - Rightfully Re-restored
Check out Gordon McGilton's beautifully restored 1951 Ford F-1!... more
 
How To Build A Custom Gas Tank - Fuel For Fraught
Check out how easy it is to build a custom gas tank in this how to article.... more