okay I need advice, I got an 1979 silverado k10 with a small block chevy 350. I’m getting ready within the next few days to replace the headgaskets and the intake manifold gaskets. my Dad left behind the gaskets I have and my truck was the only carbureted motor he’s had in past 20 years so I’m assuming the obvious that these gaskets are the correct ones I just need a verification. the headgaskets I have are 7733SH1 was lookin on forums and everyone is saying with my 350 stock 4.000 bore these should work even though the bore for them is 4.100 now the intake manifold gaskets are 90314-1 I can’t find anything on if these will work I seen 90314-2 will work but I don’t know how big of a difference there is between the two and I do need to know asap. so if anyone knows for a solid fact that I have the correct gaskets please let me know, much appreciated in advance!

 

Howdy Colton0013,

I know they are your father's gaskets, and I get the idea of using them in respect to that, but depending on age and brand, it might be worth the extra money to purchase newer ones. The only head or intake gaskets I use are Fel-Pro's. If your father's K-10 pickup had the 1979 350 CI motor, then the bore is indeed 4.125 inches for the head gaskets.

 

yea I know whatcha mean but they're brand new fel-pros outta the box which is why i wanna use them but would the gaskets i have work then?

 

They should work if they are the correct diameter. I show Fel-Pro 90314-2 will fit. It's likely just a minor update.

 

okay, n thank you and I believe the diameter difference should work for the headgakets but not 100% on it. my stock motor bore size is 4.000 and the headgakets bore size is 4.100 from the research I've done it seems like that's the typical size difference everyone else uses but I just wanna know for a fact before I start pulling the motor apart

 

I checked around bit all I could find were 4.1 inch head gaskets for your 350.Chevy motor.

 

okay, thank you

 

Not a problem. That's what we are here for.