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Search found 1203 matches

by PRH
Sun Jan 16, 2022 6:12 pm
Forum: Engine Tech
Topic: valve grinding
Replies: 34
Views: 1330

Re: valve grinding

There's really only one solution if you’re not happy with the quality/sizing of the job...... along with the iron guides. About the only thing I use iron guides in anymore are stock replacements for an OE application on late model stuff....... which in itself is a pretty rare occurrence. Performance...
by PRH
Sun Jan 16, 2022 5:32 pm
Forum: Engine Tech
Topic: valve grinding
Replies: 34
Views: 1330

Re: valve grinding

Frankly, imo...... the wiggle test isn’t accurate enough to determine the guide clearance. Even the split ball gauge and a mic don’t really give you the full “picture” of how straight the guide is along with the sizing. I’d be lost without my sunnen gauge. Sometimes the guide has a bulge near the to...
by PRH
Sun Jan 16, 2022 2:45 pm
Forum: Engine Tech
Topic: valve grinding
Replies: 34
Views: 1330

Re: valve grinding

Assuming the OP’s heads came with press in bronze guides....... the normal servicing, plus guide replacement, plus a skim cut........ would have pushed the bill into the $850-900 range, depending on exactly what guides were used. If the heads just had holes drilled in the iron as the original guide(...
by PRH
Sun Jan 16, 2022 2:30 pm
Forum: Engine Tech
Topic: valve grinding
Replies: 34
Views: 1330

Re: valve grinding

skinny z wrote: Sun Jan 16, 2022 2:24 pm
modok wrote: Sun Jan 16, 2022 2:17 pm So it has bronze guide liners?
Mine does. I was illustrating the costs as per your previous post.
Not sure about the OP.
Based on your invoice, they used CHE brand “1/2” guides.
I don’t think most people consider those as “liners”.

“Liners” to me are like what K-line sells.
by PRH
Sun Jan 16, 2022 2:27 pm
Forum: Engine Tech
Topic: valve grinding
Replies: 34
Views: 1330

Re: valve grinding

The invoice posted by SkinnyZ is quite a bit more involved than the “regular servicing” I was referring to...... which would be more of an end of season freshen up on heads that were properly done the last to around. However, it does appear their rates are higher than mine. Not sure how that would s...
by PRH
Sun Jan 16, 2022 11:35 am
Forum: Engine Tech
Topic: valve grinding
Replies: 34
Views: 1330

Re: valve grinding

In the area of the country where I’m at(New England), quality engine machine work done by people who are proficient at their job, using well maintained equipment can be expensive.

It’s nothing to spend upwards of $500 for a regular servicing on a pair of performance oriented V8 heads.
by PRH
Sat Jan 15, 2022 11:25 am
Forum: Engine Tech
Topic: Bullet/Ultradyne Cams
Replies: 10
Views: 573

Re: Bullet/Ultradyne Cams

A friend of mine had Bullet grind him a UD roller for a BBM a couple of months ago.
No drama.
by PRH
Fri Jan 14, 2022 12:47 pm
Forum: Engine Tech
Topic: Budget Parkerizing flat tappet cams at shop
Replies: 35
Views: 1125

Re: Budget Parkerizing flat tappet cams at shop

I always use either the black moly paste or the Driven assy grease cam lube on the cam lobes and bottoms of the lifters. I’d never just use oil for a new cam & lifters. So, step one would be verify the lobe taper & lifter crown. Then I’d verify lifter rotation prior to lubing up cam/lifters with pro...
by PRH
Wed Jan 12, 2022 5:15 pm
Forum: Engine Tech
Topic: Budget Parkerizing flat tappet cams at shop
Replies: 35
Views: 1125

Re: Budget Parkerizing flat tappet cams at shop

Those lifters were no problem to get back when that engine was built.
by PRH
Wed Jan 12, 2022 4:30 pm
Forum: Engine Tech
Topic: Budget Parkerizing flat tappet cams at shop
Replies: 35
Views: 1125

Re: Budget Parkerizing flat tappet cams at shop

Several years ago, before the crate motor thing took over the local circle track scene, we had a freshly built 350 on the dyno. This was for one of the mid-level classes. Stock small valve heads, stock 2bbl intake, ex manifolds, hyd cams, stock rockers, etc. One of the cams we had success in that cl...
by PRH
Tue Jan 11, 2022 5:31 pm
Forum: Engine Tech
Topic: PCV vs EVAC
Replies: 46
Views: 1337

Re: PCV vs EVAC

The pan evac isn’t legal in Stock.
Not sure about SS.
by PRH
Tue Jan 11, 2022 4:34 pm
Forum: Engine Tech
Topic: GMC 637 engine
Replies: 10
Views: 467

Re: GMC 637 engine

Seems like a good powerplant for some Rat Rod type thing you’d see Jay Leno driving around.
by PRH
Tue Jan 11, 2022 4:04 pm
Forum: Engine Tech
Topic: Budget Parkerizing flat tappet cams at shop
Replies: 35
Views: 1125

Re: Budget Parkerizing flat tappet cams at shop

It certainly doesn’t seem like the OP’s application should require any “extraordinary measures” to get a cam to live. Some people get lucky, and the motor doesn’t eat the cam...... even when it probably should have. The lifter in the pic was one of several that came out of a 360 Mopar that looked li...
by PRH
Tue Jan 11, 2022 3:04 pm
Forum: Engine Tech
Topic: Torque plate hone a BBM ?
Replies: 22
Views: 1488

Re: Torque plate hone a BBM ?

There are many many things in life that intuitively seem like a bad idea, that don’t need to be proven to actually be a bad idea. Like walking off a cliff. Maybe it’s just my perception of how (in)tolerant the main line is of machining errors, but machining the main bore with a portable boring bar f...
by PRH
Tue Jan 11, 2022 1:12 pm
Forum: Engine Tech
Topic: Chamber Mods vs Material Volume Removed Question
Replies: 19
Views: 810

Re: Chamber Mods vs Material Volume Removed Question

Looking at Larry's 292 combustion chamber is a work of art in my opinion
Larry’s stuff always looks like mechanical art!!