2F Head - Chevy Valve Conversion HELP (1 Viewer)

[CRUISERMHK]

Hi all, I know this topic has been discussed to death, pro's, con's etc. I know I need a valve job so I'm heading down this path on my Aug 85 along with a 0.040 overbore, 0.035 head shave, Delta 500s cam grind, header, EFI.

What I cant find are specific details. Which valves, guides, etc.

I have a local machinist who has a very good reputation in engine building. He has not done this upgrade and the problem is trying to find the appropriate parts. He is more old school and searching the net is a struggle. Rather than pay him to struggle, I'm trying to use resources to help with the parts find and guide.

1. Which valves exactly. 305 V8 has 1.500 and 1.840 with 11/32 stems. Some mention LS valves which are almost 2.000 inches. Do those fit?
2. Valve guides? Replace or ream the original larger? Buying a specific Ream is costly for a one time job.

I wish I was somewhere close to machine shops with experience but I live where I live in Kansas and don't have a lot of options. So if you can help me with some resources, I'd appreciate it.

Robin M. in MHK

 

[Pighead]

I did a valve job on a Late F head last year, probably different from yours. My machinist decided on SBI 01762R for the intakes and 11361-8 for exhaust. Used new guides.

 

[3_puppies]

Jim C posted about this many years ago in the 40 section, maybe in FAQ

 

[White Stripe]

I don't know if .035 head shave will be worth it. I would consider more. And some basic head porting.

 

[SteveH]

I did a .030 head shave and found no measurable increase in compression. I would either do more, or skip it.

 

[Spike Strip]

Post #4

Head comparisons..(FAQ)

While Dhondagod was at my house over the weekend we were chattin about different heads for 2f's. H recently had a head gasket blow in his early 2F and got a good look at his head. I knew that I had a later model head sitting around (probably around 87 ish) with a casting number 61040 and...

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