Camaro Research Group Discussion > Originality
ZL1 timing cover and oil pan bolts
1971ls6:
Being that the zl1 motor only had the timing cover and oil pan to paint black along with the water pump, were these parts painted off of the motor? If so, we're the bolts black phosphated? Head markings? Captive washer?
william:
The assembled engines were not painted as normal cast iron engines but certain steel components were painted. The ZL1 engine assembly manual shows that "black engine enam" was to be used to paint the "oil pan, air inj brkt, distr clamp, frt cover, clutch fork (exposed part), torsional damper, lifting hook, exh manif, clutch hsg cover".
Normal manufacturing processing would dictate these parts were painted prior to assembly. Automotive fasteners are coated and do not need to be painted.
http://www.camaros.org/copo.shtml#engine
firstgenaddict:
Are there any ZL1's with original Exhaust manifolds which still have black paint on them?
william:
All Tonawanda BB manifolds were painted. Mostly fried by the time the car was delivered.
1971ls6:
I am still looking to verify the finish on the oil pan and timing cover bolts. My though is that they did not use bright zinc finish at tonawanda for fasteners that for the most part were being painted engine orange, hence they would use the black phospated bolts??
On the next question, were the alluminum intake. Bolts zinc or black?
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