you need to be very careful, as imitation/fake name brand parts from china/india are being sold

Grumpy · Nov 23, 2023

if there's any money to be scammed from the un-aware , there's surely someone out there,
ready to take their cash in a heartbeat selling crap quality goods.
unless you deal DIRECTLY with the name brand vendor, or in some cases even some larger parts houses
you take a chance on getting crap quality components
keep in mind a single bolt, stud, or valve spring failure will trash your engine into scrap.

I learned that long ago,+ anything priced significantly lower than the brand name parts,
is generally made significantly cheaper from crap materials
that generally results in crap materials and/or shoddy machine work,or both

yes there are some well made imported components , but the vast majority ,from what I've seen, are not top quality

“Quality is like buying oats. If you want nice, clean, fresh oats, you must pay a fair price.
However, if you can be satisfied with oats that have already been through the horse ...
that comes a little cheaper.”

Counterfeit ARP Bolts | Consumer Alert

How to identify fake ARP Bolts

thecounterfeitreport.com

related info

preventing leaky head bolts/studs

many guys have coolant leaks from studs and head bolts,you don,t need that P.I.T.A. IF your going to use ARP main cap studs THE TORQUE SETTINGS ARE DIFFERENT than the original BOLTS, the STUDS ARE STRONGER, BUT,you might also consider that main studs generally install after cleaning the threads...

garage.grumpysperformance.com

sellecting valve springs, and setting up the valve train

How do you determine the spring pressure needed to keep the valves under control for a given lift, duration, and max rpm. It might take you several hours to read thru all the links and sub links but its time very well spent as it could save your engine from destruction and save you thousands of...

garage.grumpysperformance.com

Cam degreeing

Degreeing – In the Camshaft New racing camshafts have a cam card included that shows the specifications for that camshaft. Degreeing In the cam means verifying that the valve timing and lift are close the specifications printed on the cam card. There are several reasons to degree in a...

garage.grumpysperformance.com

degree it in correctly and get it to last,cam install info,

IM frequently asked (why bother degreeing in a cam, the timing set comes with index marks to install it?) it basically comes down to, a question of do you accept a random install where the timing can be almost any place randomly or do you insist on maximizing the engines potential and know...

garage.grumpysperformance.com

Precision measuring tools

Iâ€™m looking for the best quality precision tools on a limited budget (i.e. I don't want to pay $300 for one mic). I plan on building the occasional small- & big-block Chevy (more than one, less than 1000). Names that come up on the limited results Iâ€™ve found on the web include Starrett...

garage.grumpysperformance.com

Grumpy · Nov 23, 2023

I know of two cases,
where FAKE ARP rod bolts failed, resulting in a trashed engine!
in both cases guys tried to save cash, and bought fake/imported ARP rod bolts
and in one case the machine shop the guy had resizing the connecting rods even pointed out that the rod bolts,
were imitations , yet the guy used them, and he said they worked fine!
well they did for about 5 months.. then one stretched and the rod came though the block!
and when we looked the rod bolt was obviously stretched & bent in a way I've never seen an ARP rod bolt fail

BE AWARE OF FAKE BRAND NAME PARTS AT DISCOUNT PRICES
I once purchased a bunch of chevy valve train parts from a local auto parts vendors shop that was going out of business,
among those was a " CLONE OF A CLOYES" timing chain and timing gear set,
it looked identical, to real cloyes parts,
but it said in very small print under the timing gears,
printed, on the cardboard, under the timing gears
where you could not see it with the shrink wrap holding the parts to the cardboard backer
(which had CLOYES) written in 1" high red letters on the package,
"made in india" it proved to be 11 degrees advanced in the DOT-TO-DOT config.
when a degree wheel was used
DOT-TO-DOT

its a good idea to use a rod bolt stretch gauge,

as ARP says how far the bolts should stretch under a stated load from the torque wrench
and having a quality torque wrench certainly helps, and
ID suggest you use a degree wheel to index cams as the DOT-TO-DOT method of cam installation has potential flaws

degree it in correctly and get it to last,cam install info,

IM frequently asked (why bother degreeing in a cam, the timing set comes with index marks to install it?) it basically comes down to, a question of do you accept a random install where the timing can be almost any place randomly or do you insist on maximizing the engines potential and know...

garage.grumpysperformance.com

measuring rod bolt stretch & preload

http://arp-bolts.mobi/p/tech.php?page=3 http://arp-bolts.mobi/p/tech.php?page=2 http://www.hotrod.com/how-to/engine/116 ... etch-tool/ http://arp-bolts.com/ http://www.harborfreight.com/1-inch-tra ... r-623.html...

garage.grumpysperformance.com

assembling and installing connecting rods/pistons

He Measured .0004" - 4/10,000 th of an inch #5 MAIN CAP BORE DISTORTION TORQUED DOWN TO SPECS WITH THE OIL PUMP ON. I DON'T.LIKE IT. IT SHOULD BE +/- .0001" TOLERANCE. +/- .0002" INCH MAX.

garage.grumpysperformance.com

which torque wrench

these look great, and theres little doubt they are a quality tool. keep in mind the purpose of a torque wrench, its designed to allow you to tighten bolts to a known and consistent and repeatable or duplicate-able level, that insures the bolt or fastened applies a consistent predictable clamping...

garage.grumpysperformance.com

you need to be very careful, as imitation/fake name brand parts from china/india are being sold

Grumpy

The Grumpy Grease Monkey mechanical engineer.

Counterfeit ARP Bolts | Consumer Alert

preventing leaky head bolts/studs

sellecting valve springs, and setting up the valve train

Cam degreeing

degree it in correctly and get it to last,cam install info,

Precision measuring tools

Grumpy

The Grumpy Grease Monkey mechanical engineer.

degree it in correctly and get it to last,cam install info,

measuring rod bolt stretch & preload

assembling and installing connecting rods/pistons

which torque wrench