NOS Engine

[Dusk_Blue_Z]

Otherside

[Dusk_Blue_Z]

A stamping

[Dusk_Blue_Z]

The pistons all have letters written on them. Here's one with an 'H', they are in the 1-3-5-7 cylinders. 2-4 have 'G' and 6-8 have a 'J'.

[maroman]

What is the ingredients of the vinegar concentrate? I buy vinegar at the grocery by the gallon.

[Dusk_Blue_Z]

It's called Austin's Cleaning Vinegar. When I bought it, it didn't list the acidity level, I just assumed it was higher than the 5% that's in white vinegar. Also, the label warned against drinking it.

Here's the website: http://austinsbleach.com/product/cleaning-vinegar/

I'm not a scientist nor do I play one on TV, but the Safety Data Sheet lists Acetic Acid at 4-6%, the remainder is water. I noticed on the white vinegar label is listed acidity of 5%, but I don't know if that's acetic acid or something other acid.

The Austin's was $1.79 a quart.

[maroman]

Thanks, I will look for it. As I said, I've been using plain white for several years and it works great.

[KurtS]

Pretty sure the letters on the pistons is for sizing.

[ko-lek-tor]

Pretty sure the letters on the pistons is for sizing.

X2

[JKZ27]

Pretty sure the letters on the pistons is for sizing.

X2

Kurt, Bentley, or Nick, would there be corresponding letter marks or stamps on the block to match piston to bore? I remember 4.0 Jeep 6cyls had hand written letters, A,B,C,D, to indicate finished bore size range.

[Dusk_Blue_Z]

Hi, sorry to bring this thread back up, but I've exhausted all search combinations and cannot find an answer. For some reason, the front end of the NOS engine crank is exactly 0.5" shorter than two 1178's I measured. Which is why I'm having trouble putting the balancer on...

Does anyone have insight on this? Would I be better asking the Nasty Z28 community?

So frustrating!!!

[Dusk_Blue_Z]

After sleeping on it, I've accepted the 302 and 350 cranks have different size snouts. Like many of the interchangeable parts on these SBC's, I figured the snouts would be the same size. Sorry for the rant above.

[Kelley W King]

Something I did not know. Is this a way we could identify a 302 assembled? With or without the balancer on. Maybe post some pics.

[Stingr69]

Looking at Colvin's book - Overall length of the SBC cranks should be between 24.71" and 24.73".  Might not cover all the applications but it is a dimension for you to check.  We probably need more 350 crank dimension data points to check before assuming your crank is typical.

[Stingr69]

What problem are you having installing the damper?

[Dusk_Blue_Z]

The dampener was bottoming out, either on the first main journal or the getting hung up on one of the keys. For some reason I though the balancer went all the way on, nearly being flush with the timing chain cover. I'm about 3/8" off the timing cover now. Its on as far as she'll go.

Next I'm going to install the water pump and pulley's to see how that lines up.

I'll measure the 350 and 302 cranks and see how they stack up.