Getting Started in 2013, Part #7, ‘Chas. Charlie’ Short Block


Builder ‘Chas. Charlie’ elects to use a Weseman prepped crankshaft with a gen 2 bearing hub installed. He is going to elect to have a new gear put on his crank. He is going to get a Clarks failsafe gear, installed by Clarks on a new cam, so he can just take it out of the box and put it in the case. This option looks at trading more money to have new parts and less time involved in the case assembly.

 (At the end I will cover some options and notes. CC stands for Clarks Corvair parts, SR stands for Summit Racing, ELS stands for Ebay Larry’s Corvair parts, and ECA stands for Ebay California Corvair parts.)


Crank group (1000)

1000- Crank GM 8409 prepped by Dan Weseman with Gen 2 5th bearing hub installed. ( $1,350)

1001- Crank gear (new, $100, installed in crank processing)

1002- Crank gear key (Included in crank prep)

1003- Crank gear gasket (Included in crank prep)

1004- Rear keys -2-(CC-#5858, $1.50, $3)

1005- Fuel pump eccentric (used, from core engine)

1006- Spacer (used, from core engine)

1007- Bronze distributor drive gear (used, from core engine)

1008- Oil slinger (used, from core engine)

1009- Main bearings (ELS-$88)

1010- Connecting rod bearings (ELS-$59)


Cam group (1100)

1100- Cam ( CC, part 8800, $235 )

1101- Thrust washer (new installed by Clarks, $12.60)

1102- Key (CC-#5858, $1.50)

1103-  ‘Fail safe’ Cam gear (CC- $94 + $25 assembly)

1104- Hydraulic lifter set -12 total- ( $2.99each, $36)

1105- Cam lubricant (comes with OT-10 cam)

1106- ZDDP oil additive (SR,$16)


Case Group (1200)

1200- Case -2 halves with studs- (used, from core engine)

1201- Main case bolts -8- (used, from core engine)

1202- Pipe plugs for oil galleries -2- (used, from core engine)


The total of Charles Charlie’s parts is $2020.10.  This is a moderate increase over Bob Baker’s parts at $1,766. It will take less time to assemble, and it will all be bolt together stuff eliminating shrinking the cam gear on the cam at home. Many builders are attracted to the idea of having a new cam and the best cam gear, and I can’t argue with this, but traditional engines we have built that have a lot of flight time on them have had perfect service histories on reground cams and standard gears.

To get his short block up to the point of having a fully operational 5th bearing, Charles Charley will order the second half of the Weseman bearing, the Billet housing/bearing/seal for $750. This brings his total to $2,770.10. Again, if any builder would like to have this assembled as a running start, we are glad to pick up the parts at The Weseman’s and take care of it for a modest charge. -ww

About William Wynne
I have been continuously building, testing and flying Corvair engines since 1989. Information, parts and components that we developed and tested are now flying on several hundred Corvair powered aircraft. I earned a Bachelor of Science in Professional Aeronautics and an A&P license from Embry-Riddle Aeronautical University, and have a proven 20 year track record of effectively teaching homebuilders how to create and fly their own Corvair powered planes. Much of this is chronicled at and in more than 50 magazine articles.

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