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Old 09-15-2012, 05:46 PM
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68 Firebird 68 Firebird is offline
Chief Ponti-yacker
 
Join Date: Apr 2001
Location: Colonia NJ USA
Posts: 994
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Garage asked an excellent question. When my motor was freshened with new
bearings, rings and cam and lifters she ran a little to the warm side if allowed to
idle in garage after the breakin was done. As soon aas driven on rode she was cool.

After 100 miles she ran cool even at idle in traffic. Also keep idle up to atleast 600
in gear, keeps lots of oil splash on cam and lifter and helps with keeping waterpump spinning at a good rate.

Also is the water pump pulley smaller than crank? Ask me how i know!!!

Gerry C

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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, GM HEI and Ram Air pans and RARE Long Branch Manifolds