PROCOMP SBC Alum Cylinder Heads VS ebay 2.0

PROCOMP SBC Alum Cylinder Heads VS ebay 2.0

Now called Speedmaster , I compare a 210cc Procomp 3003 to a generic ebay aluminum chevy small block head. Aftering watching another youtube video by Richard Holdener I got the idea to borrow the Procomp from my friend.
Richard Holdener’s Channel
RH Dyno Videos with the Procomp heads

Procomp Deck Surface video

OG ebay heads
2.0 ANOTHER set of ebay Heads
3.0 Third set & comparison of ebay Heads

Sportsman II Cylinder Heads
-Short Review
-Ramble bout my sets of SP2’s

Ported Dart II Heads Finishing
[Part 1]
[Part 2]
[Part 3]

SHP OLD vs NEW Heads

BPE Heads UP
Part 2

PORTING Related Vids
diy Porting with Compact Electric die Grinder
Metabo Die Grinder
Video where I made the dummy valves and plugs
Short Thread Protectors Vid

Vortec Intake Modified to fit 12 bolt pattern
Speedmaster Vortec Dual Plane

Cylinder Head Bolt & Stud WASHER Prep

Vortec crate unboxing
Part 2 Tear Down Begins
Part 3 Short Block
Part 4 Heads

Other Vortec videos
-rocker stud replacement
-valve seal tool
-head identification
-intake prep

Outro music

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  1. The F-Zomb50 Channel on January 28, 2022 at 2:10 pm

    Those Ebay heads look like they started out better just in the casting. Adds validity/believability to those numbers you found. Looking forward to seeing you get a set of heads together and into one of your projects.

  2. BOOT on January 28, 2022 at 2:11 pm

    Thx for watching, check out my Cylinder Heads Playlist & Subscribe

  3. Ryan Salmon on January 28, 2022 at 2:12 pm

    What spark plug do the pro comp 3003 heada use ?

  4. Eric F on January 28, 2022 at 2:15 pm

    Do you know what type spark plug does procomp 3002 head use? If you know? I’m not an engine builder I just bought a truck with supposedly a 383. They have angled plugs ports I can’t tell they used flat washer or tapered type plug. Thanks

  5. Olivier Faucher on January 28, 2022 at 2:18 pm

    Wow that procomp intake port is Garbage!

  6. Jrod 264 Win mag on January 28, 2022 at 2:23 pm

    I’m dynoing my 383 stroker tomorrow with the 3003 pro comp head

  7. Boone Speed on January 28, 2022 at 2:23 pm

    Are these equivalent to the 540 dollar assembled AT racing world eBay heads? Just ordered a set for a tow rig hoping the are decent. Planning to swap the springs bc I china springs lose pressure

  8. Lee Hall on January 28, 2022 at 2:23 pm

    I see your from Michigan 👌

  9. Adam Forman on January 28, 2022 at 2:25 pm

    I brought a pair of pro com heads an they are cnc ported with 202 160 valves an I can’t figure out what headers to buy ,. Can you help…

  10. Brenton K on January 28, 2022 at 2:37 pm

    my advice is, Keep the one on the right, send the rest back. There is no comparison between the two. The one on the right is the best quality low budget mass produced product, cylinder head on the market period.

  11. C M on January 28, 2022 at 2:39 pm

    Hard to watch

  12. the nitro man on January 28, 2022 at 2:44 pm

    Those "eBay" heads are proheader castings. They are a dart Platinum copy. A dart cnc program will make it a great head. Those proheader heads are way way better. They are sold as nkb200 heads by Skip White, and they are also called "assault racing heads". The easiest way to tell that they are not the junk procomp/speed master is looking at the deck if they are assembled. Chad Sphieir used them as his economy head and they work great. Buy them bare and put good parts in them. Also, the intake port is raised .100" over stock in the proheader castings. I ported my Victor Jr to match the raised runner. A felpro 1205 works well to port match with with the stock Victor Jr port. It opened it up a lot.

  13. williamhall32000 on January 28, 2022 at 2:45 pm

    Those aren’t eBay heads they’re proheader. Knock offs of dart pro 1. Much better head than the procomp. These are the same heads blueprint uses on their crate engines.

  14. Fernando Mata on January 28, 2022 at 2:46 pm

    Can you post the ebay part#, I’m going to be rebuild my boat engine and want to go aluminum heads. Thank you for showing a real life comparisons!!!

  15. Rusty Britches on January 28, 2022 at 2:46 pm

    Aren’t pro Comp heads the same thing as a generic eBay heads? That’s where I bought my pro Comp heads for about $422 brand new plus shipping! And they definitely needed a lot of work!

  16. Monty Mantovan on January 28, 2022 at 2:48 pm

    Lots of good info—–how can I find these heads on eBay—-can I get them bare

  17. Ruben Alfonzo on January 28, 2022 at 2:54 pm

    hello really, what makes a query, I sold those heads but a chance a friend who works in wuilson manifold

    And I work them and that, Excellent what is the problem with the head that they are badly finished but they are carried by a professional person and leaves them excellent good this is my opinion friend I am writing to you from Caracas Venezuela

  18. Turbo Fire on January 28, 2022 at 2:58 pm

    It’s pretty obvious the procomp is a much better head than the cheap one, all that extra volume!

  19. david ghiglieri on January 28, 2022 at 3:01 pm

    Everyone is getting them from the same distributors that you can find on alibaba. How do you think these guys on ebay are getting these heads. They aren’t going to China and having heads designed for them from a machine company. They literally going on alibaba and buying them from a manufacturer or distributor.

  20. Doug's Maintenance Shop on January 28, 2022 at 3:03 pm

    Just picked up a set of 2018 manufactured #3003 pro comps. Also, I am from Michigan!

  21. El Wapo on January 28, 2022 at 3:09 pm

    Unless their quality has significantly increased……pro comp or whatever you call them are crap. Everything they make is as cheap as they possibly can. There is no such thing a QC with them.

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