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SSP Forged Counterweighted Crankshaft 78.4mm VW Journal - All Questions

SSP Forged Counterweighted Crankshaft 78.4mm VW Journal
SSP Forged Counterweighted Crankshaft 78.4mm VW Journal
SKU
AC105060
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Do I need custom con rods for this crank, and or custom pistons?
Question by: Andy on 27 Mar 2025, 13:10
Afternoon Andy,

It depends on what size barrels and pistons you want to use. The crank will work fine with stock con rods and pistons intended for a 69mm crank. But you will need a 3.5-4.5mm spacer under the barrel to achieve a good deck height for the piston. Also running a shorter rod like the stock one will give you added torque so that is ideal for a full weight car or a bus. If you planning on extending the rpm range of the motor then a longer rod (5.500") will help here, with just a 2-3mm spacer under the barrel. HP will also be slightly higher with a longer rod. In short stock rod, smallish cam (engle 110) = a good daily driver for a full weight car. Longer rod, slightly bigger cam (Engle 120ish) will be a little more aggressive.

But as far as the dimensions of the crank go, it uses stock VW beetle big ends and main bearings.
Answer by: Max Morley (Admin) on 27 Mar 2025, 16:19

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