batavus m48 custom cut COUNTERSUNK head - SUPER STREET
batavus m48 custom cut COUNTERSUNK head - SUPER STREET
 
  $61.99

 :HERE NOW!!

qty:



here's what ya get in this PARTYYY!:
 
 
custom cut squish 40mm head specifically machined to match the dome profile of the stock batavus laura m48 piston!! this baby is countersunk an impressive 2.8mm to make up for the massive squish that the m48 has stock!

please note this was cut to an original batavus M48 engine we had and I am sure there are multiple variations of pistons/cylinders out there so definitely double check this will work for you. we have not heard of any instances of it not working yet. if we do we will alert you here to any known inconsistencies!

this could be the secret to true bat power if such a thing even exists.

this one is cut to super street specs meaning it has high compression and is more suited for racing and ripper builds!

Uses o-ring head gasket technology. One is included, but if you need more you can find them here

some more notes on this from the maker -

These are high compression so you can raise the exhaust port ! For those that are unaware the higher the exhaust port controlling edge the less time for compression, = less compression.

These heads with stock exhaust port height will have a lot of compression, torque and heat in high RPMs. If you're into low rpm and a lot of pull then upjet and retard the ignition timing .

Stock batavus barrel tuning !
For the hacker and dudes with extra cylinders, a safe number to widen your exhaust port is 67% the cord width . Make sure to radius all newly cut edges !! Maybe the old edges too !

The blow down / exhaust duration
It's super cool to throw a degree wheel on and set the exhaust timing or you can document your small steps. When you increase the exhaust size and duration you will also increase the engines ability to Rev higher! Higher Rpms means more mph , at some point the main transfers will not support an exhaust port that is open too long . There is a limit but no one knows what it is !

Piston ring position and boost port
There's enough room between the ring pegs for a cylinder finger port . ( channel cut into the cylinder wall) with a matching window in the piston you now have a 3 port super stock M48!!

It's going to be interesting to see who makes the “ fastest Batavus “ !
***note that there is some very small pitting from the initial casting of the heads. it will not affect the performance do not fret***

taco rating taco rating 5 of 5 5 of 5 Total Reviews: 5 give your taco rating here

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5 of 5 came fast and definitely adds speed and quickness September 3, 2022
taco eater : danny vanzandt from minnetonka, MN United States  
i have an issue and was hoping someone in here could help me out, i installed this part on my bat and it worked as expected. however a day later it was much more difficult to start (took much more pedaling) i used to be able to start it in a quarter turn, and now i have to really pedal it hard just to get it to sputter and then i have to give it max throttle and slowly let off for it to idle. could it be a spark issue? maybe a smaller/bigger gap? or is it idle speed?

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5 of 5 An Absolute MUST HAVE August 7, 2021
taco eater : Benjamin Derdich from Fort Collins, CO United States  
This head is a complete game changer. It awakens the engine in ways I didn’t even know possible. This head allows you to accelerate without having to use those pesky pedals and adds (and I’m serious here) 10mph to your lauras top end. If you have a good exhaust, carb, intake, and add this puppy in you will need a new speedo. As mentioned bellow grab yourself some of those new studs so that you can just bolt the head right on and you’re good to go. 10 minute install and probably doubles the power.

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4 of 5 Adds more driveability July 20, 2021
taco eater : Das Booty from Newport, RI United States  
This head gives the stock M48 noticeably more pickup / driveability.  Your low to mid range is where it really shines.  Now the M48 can handle almost any hill within reason.  You WILL need shorter studs for this head, as the stock M48 studs are too long.  The ESO quality puch cylinder stud - M6 x 106MM sold here work perfectly, the only reason I am giving it 4 stars out of 5 is that you need to buy these studs to not have a "backwoods" look with shims, bushings, or excessive washers to compensate the long stock studs.  Torque each nut to 8-9 ft lbs.  Clean the head with carb cleaner or acetone before install.  Do not use a gasket, trust me.  Enjoy actually leaving the stop sign on your ride.

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5 of 5 Head Gasket? July 10, 2020
taco eater : Leo from San Diego, CA United States  
Just wondering since the stock M48 doesn't use a head gasket.  Looks cool though.

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5 of 5 Oh my poor clutch. July 10, 2020
taco eater : ADAM RIS from Lakewood, CA United States  
Sounds like a dream! Where my clutch doesn't love my choice.
**QUESTION- could the head be paired with the 64cc morini cylinder kit?

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