63-64 oil pressure guage in JG

[Michael H.]

Could someone with the latest 63-64 JG tell me what is specified for early and late 63 oil pressure guage? What is the wording? Also, same for 64. Thanks

[Duke W.]

Re: 63-64 oil pressure guage in JG

The information is in two tables on page 31 - one for '63 and one for '64

For '63 a 60 psi gage is called out for all "early" engines and a 80 psi gage is called out for ALL "late" engines, but the table is followed by the following note.

"There appears to be no correlation between engine horsepower and 60/80 lb. oil pressure gauges. 60 lb. pressure gauges are used on all 1963 cars until approximately VIN 16000, at which time the 80 lb. gauge begins to appear. Between VIN 16000 and the end of production, both 60 and 80 lb. gauges are acceptable.

For 1964 is lists an 80 psi gage for ALL engines for the entire year.

Does anyone out there with a 250/300 HP '64 have a 60 psi gage.

The JG also says the tach redline is 5500 for 250/300 HP engine. I thought it started at 5300.

Duke

[Michael H.]

Re: 63-64 oil pressure guage in JG

Thanks Duke. I must have been wrong all these years because I always thought there were 60# guages for hyd lifter engine equipped cars in 1964.

[Duke W.]

Re: 63-64 oil pressure guage in JG

That was always my understaning, too - only the SHP/FI engines that had 55-60 psi relief springs beginning in late '63 got the 80 psi gages, but I haven't seen a low horse '64 in a while.

Duke

[Randy Adams]

Re: 63-64 oil pressure guage in JG

Duke, you're right about the redline. My '64 300hp starts the redline at 5300.My oil gage is 80psi.