answersLogoWhite

0

If you want to know the timing specs then here it is 4 degrees before top dead center / BTDC. Top dead center is zero on the timing bracket / Tab.
BTDC. are the marks on the left side of the zero on the tab.
ATDC / After top dead center are the marks on the right side of the timing tab.
Hope this answered your question. If not please ask it again.

User Avatar

Wiki User

15y ago

Still curious? Ask our experts.

Chat with our AI personalities

DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
MaxineMaxine
I respect you enough to keep it real.
Chat with Maxine

Add your answer:

Earn +20 pts
Q: What is the BTDC on a 1981 Chevy 454?
Write your answer...
Submit
Still have questions?
magnify glass
imp