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6T7 C10 · 05-24-2019, 10:49 PM

I have a L31 engine in my 1967 C10. Yes I did change the drive gear on the HEI. It was easy, just drive out the roll pin and replace. Just make note which way the rotor was pointing before you take it out. I have a 5 psi electric fuel pump on mine wired to a keyed on spot in the fuse block along with a motion switch and a manual switch.

05-24-2019, 10:49 PM	#2
6T7 C10 Registered User Join Date: Feb 2015 Location: TX Hill Country Posts: 150	Re: vortec roller 350 I have a L31 engine in my 1967 C10. Yes I did change the drive gear on the HEI. It was easy, just drive out the roll pin and replace. Just make note which way the rotor was pointing before you take it out. I have a 5 psi electric fuel pump on mine wired to a keyed on spot in the fuse block along with a motion switch and a manual switch.