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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: txtj79 on December 14, 2007, 02:57:49 pm

Title: What makes a 355?
Post by: txtj79 on December 14, 2007, 02:57:49 pm

I saw in someones project post that they had a Vortec 355.  What's that?  I have a Vortec 350 in my 76 Chevy, but I'm curious as to what a 355 is.

Thanks,

T.J.

Title: Re: What makes a 355?
Post by: ccz145a on December 14, 2007, 03:03:14 pm

355 = 350 + 0.030 overbore.

Title: Re: What makes a 355?
Post by: txtj79 on December 14, 2007, 03:40:06 pm

Oh, I gotcha.  I've never heard it called that before.  I almost thought 355 was refering to the OLDS engine, but I realized that was a 455.

Thanks