Has anyone ever encountered wear marks in the top side of the lifter guides? I'm in the process of rebuilding a '68 327 to drop in my '92 RS and noticed them. I tried to post a pic but it won't let me. Any help would be great.

 

Lifter guides???

Do you mean the bores the lifters ride in? Lifter bore wear is not uncommon. Can be expensive to fix, though. Not many machine shops are equipped to bore and hone lifter bores.

 

I think he means the dogbone retainers held in by the spider.

 

Do they fit a '68 327 block?

 

Oh I missed that part. And yes they do fit with some grinding. Add some 60deg v6 roller lifters and you have a budget roller setup.

 

I wish I could upload a pic. Its not the bore itself...It's above the bore. Hard to explain as I've never seen it before. It's a little wear above the bore where the lip is...

 

It let me upload a pic....

 

What lifters, heads and rocker combo are you running?

 

I bought the engine from a buddy of mine. When I picked it up he had already pulled the rockers,push rods,cam and lifters so not sure what was in it being the guy for some reason tossed them. I have a New cam and lifters that I plan on putting in it. Which is an Edelbrock 2102. Came in a set with flat tappet lifters.Still have to get the new rockers and push rods. The heads are the stock camel hump heads.

 

Its hard to tell from your picture what wear you are talking about. Honestly, it all looks normal to me. I have a 327 block in my garage, I can go look at the lifter bores and take a picture for you.

Remember, the lifter bores on a roller block like your 92 would have had, are different. There are no dog bones, so the lifters can rotate. Pushrod alignment is done with slots in the heads, or pushrod guide plates, and the rockers are non-aligning. It is all very different from the way a roller cammed block looks.

 

Looks like a machining operator wasn't paying attention on the 1st 3 holes that day it was made.

 

Ok...on top of the lifter bore is the little lip...in the pic it shows on top of that lip towards the cylinder, what looks to be wear marks...its not on all of the lifter bores though that is why I questioned it. Its only on 4-5 of them. If you say it looks as it should then that works for me...I just didn't know if it was going to affect the lifter in any way...I don't want to build this thing and have it chewing up lifters. Its bad enough the guy told me it was a good running engine but when I stripped it down I found it had a spun bearing which gouged up the crank a little...I figured I'd just replace all bearings and seals as well as cam,lifters,rods and rockers and be done...well now gotta get two connecting rods un hope the crank can be ground down( don't know proper term) or have to buy another crank. Thanks for the help. I do appreciate it.

 

Can you circle the area on your picture that you are specifically worried about?

If you are talking about the different levels of chamfering, that is very normal, in the early 60's casting was not what it is today, so you had some lifter bores heavily chamfered, and some got none.

If I am completely missing what you are speaking of (which i very well might be, haha), highlighting where in the picture you are worried about might help.

 

nothing to worry about

 

Yup.

 

You are exactly right...the chamfering...I thought it was possibly something that was wrong with the lifters or rods that had been in the block before. Thanks again for your help. That's a little relief...

 

You are exactly right...the chamfering...I thought it was possibly something that was wrong with the lifters or rods that had been in the block before. Thanks again for your help. That's a little relief...