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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Correct oil dipstic and tube for 400cid

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G3GM :: G3 Tech :: Engine & Driveline

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Correct oil dipstic and tube for 400cid Empty Correct oil dipstic and tube for 400cid

Post by 2evil4u Thu Aug 20, 2015 6:08 pm

Have a 1973 Pontiac 400. The oil dipstick seems exceptionally long. Have to pretty much force it back in. The 400 has factory air. How long should the dipstick be?
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Correct oil dipstic and tube for 400cid Empty Re: Correct oil dipstic and tube for 400cid

Post by Joe73 Thu Aug 20, 2015 6:14 pm

After an oil change run the engine for a few minutes, shut it off and let it sit. Then check the oil level and mark the stick where full is. Then mark it about 1 1/2" longer and cut it off. Then you'll know exactly when your full and not have the extra length.
I've had to do it to aftermarket chrome dipsticks.
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