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Chevrolet Bowtie Sportsman Engine Block - Stover's Stroker

Chevrolet Bowtie Sportsman Engine Performer Multipoint Efi Conversion System
Chevrolet Bowtie Sportsman Engine Fuel Rails
Chevrolet Bowtie Sportsman Engine Water Pump
Chevrolet Bowtie Sportsman Engine Valves
Edelbrock uses one-piece,... 
   
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Chevrolet Bowtie Sportsman Engine Valves
Edelbrock uses one-piece, swirl-polished, hardened-tip stainless steel valves with 111/432-inch undercut stems for increased flow. Manganese-bronze guides, hardened ductile iron seats, and two-ring positive oil control seals complete the package. These heads come with valves fully assembled by Edelbrock, along with the proper valve springs allowing up to 6,500 rpm without issues. As you can see here, our intake valves were every bit of 2 inches in diameter.
Chevrolet Bowtie Sportsman Engine Executive Order Number
Here you can see where Edelbrock... 
   
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Chevrolet Bowtie Sportsman Engine Executive Order Number
Here you can see where Edelbrock marks the E.O. number on each head, easily visible during smog inspections. Cast at the Edelbrock Foundry and machined at their California manufacturing facility, these U.S.-built heads are consistently superior when it comes to value for the dollar spent.
Chevrolet Bowtie Sportsman Engine Intake Exhaust Ports
This photo shows how each... 
   
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Chevrolet Bowtie Sportsman Engine Intake Exhaust Ports
This photo shows how each of the intake and exhaust ports are CNC-machined to optimize flow efficiency. In addition, all Edelbrock Performer heads feature threaded inserts for rocker studs and exhaust bolt holes for superior strength and durability. Also included are manganese-bronze valve guides, which are most favorable for longevity.
Chevrolet Bowtie Sportsman Engine Hydraulic Lifters
These are the hydraulic lifters... 
   
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Chevrolet Bowtie Sportsman Engine Hydraulic Lifters
These are the hydraulic lifters that are matched to the emissions-compliant camshaft Edelbrock specifies for the MPI conversion. This camshaft comes with a CARB E.O. number and subsequently offers slight gains in performance over the OEM camshaft. Ultimately, we may switch to a hydraulic roller camshaft and lifters to see what power gains can be had. There is a fine line between max power and smog compliancy, and we want to find it.
Chevrolet Bowtie Sportsman Engine Intake Manifold
Our Intake manifold, though... 
   
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Chevrolet Bowtie Sportsman Engine Intake Manifold
Our Intake manifold, though a very nicely built piece, will require some finish prep before the assembly process can begin. Notice the extra material that was unintentionally included when the casting process occurred (see yellow arrow). We were surprised to see this imperfection sneak past Edelbrock's quality control team. Luckily we plan to have all these internal surfaces polished and re-ported to further increase flow numbers. More on that in the next build segment.
Chevrolet Bowtie Sportsman Engine Fuel Pump
Edelbrock also offers an OE... 
   
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Chevrolet Bowtie Sportsman Engine Fuel Pump
Edelbrock also offers an OE replacement fuel pump (PN 3581) designed to support the additional flow requirements of its MPI conversion kit. This pump flows 255 liter per hour (67 gph). We plan to install this later on when we tackle the engine swap.
Chevrolet Bowtie Sportsman Engine Engine Stand
Engine Stand Engines are... 
   
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Chevrolet Bowtie Sportsman Engine Engine Stand
Engine Stand
Engines are bulky, heavy, and dangerous if not secured properly. We recommend getting an engine stand that is load rated for V-8 engines. This 1,000-pound capacity stand, built by Norco Automotive Group, cost us $250 at a local auto parts store and features a 360-degree rotating head with locking set screws. We believe a good sturdy engine stand like this is critical for the assembly process.
Chevrolet Bowtie Sportsman Engine Stand Head
The locking mechanism is integrated... 
   
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Chevrolet Bowtie Sportsman Engine Stand Head
The locking mechanism is integrated into the rotating head of our Norco engine stand. Simple and effective, this arrangement allows complete rotational access without concern for unexpected movement.
Chevrolet Bowtie Sportsman Engine Flooring
Flooring We laid down an... 
   
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Chevrolet Bowtie Sportsman Engine Flooring
Flooring
We laid down an area of anti-fatigue foam flooring found in the Summit Racing catalog. This foot- and knee-friendly alternative to rock-hard concrete is a great preventative measure for accidental damage caused by dropped parts or tools on the garage floor during a project. We like this non-slip foam flooring because it absorbs impacts, and is super-easy to clean up-not to mention that it comes in 2x2-foot square tiles with interlocking edges that allow for an infinite uniform coverage.
Edelbrock
310.781.2222

edelbrock.com
Summit Racing
800.230.3030

summitracing.com
GM Performance Parts

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