BPC dissects the N52 and N54 block

John@BPC · 12-15-2016, 05:30 PM

We thought we would start a new thread on this topic, since its one of the most sought after topics. "Whats the difference between the blocks on the N52, and N54?" We hear it all of the time. We even have customers that call up and ask if we can compare the head gaskets, the heads, the bolts, rods, and more. We figured we would dedicate an entire few days to taking apart these two motors down to bare block and doing an in depth video blog.

Check it out and stay tuned for the next one!

John @ BPC

Taskmaster · 12-15-2016, 05:32 PM

I just watched the whole thing!

jc5988 · 12-15-2016, 05:34 PM

wow, nice!

jc5988 · 12-15-2016, 05:42 PM

Quote:

Originally Posted by John@BPC

We thought we would start a new thread on this topic, since its one of the most sought after topics. "Whats the difference between the blocks on the N52, and N54?" We hear it all of the time. We even have customers that call up and ask if we can compare the head gaskets, the heads, the bolts, rods, and more. We figured we would dedicate an entire few days to taking apart these two motors down to bare block and doing an in depth video blog.

Check it out and stay tuned for the next one!

John @ BPC

Just out of curiosity while u had a N51 in the video,

is it possible to retrofit piston and head from N52 on to N51 to get that extra compression?

tlow98 · 12-15-2016, 06:44 PM

Nice! Thanks for the leg work on this BPC

08njSTEP · 12-15-2016, 07:38 PM

Great job! Thank you BPC for giving the skinny on the two engines. Strong or light, pick your poison.

Grip Grip · 12-15-2016, 08:17 PM

Wow, great info indeed. Thanks for posting!

hassmaschine · 12-16-2016, 08:51 AM

Quote:

Originally Posted by jc5988

Just out of curiosity while u had a N51 in the video,

is it possible to retrofit piston and head from N52 on to N51 to get that extra compression?

The head is the same. Swapping pistons for half a point CR increase would be insanely expensive - it would be easier to just swap the whole motor.

JohnG7 · 12-16-2016, 10:02 AM

Great video- very informative...

Thanks...

oli3 · 12-16-2016, 10:08 AM

Nice, saving this for once I get home

GottWhat · 12-16-2016, 10:35 AM

This video is awesome!

sprp85 · 12-16-2016, 10:36 AM

Awesome video. Thank you

Eins Suchtig · 12-16-2016, 12:20 PM

Does the N54 forged stroker crank fits in the N52 block?

PD: If so, either rod length or piston wrist pin height will need changes...

CobraMarty · 12-16-2016, 12:48 PM

Why bother with the N54 crank and the need for custom pistons and only gain 54cc, 2996cc to 3050cc.

I don't want to put a N52 head on a N54 block, I want to put a N54 block under my N52 head. Ha.

Hobbs64 · 12-16-2016, 03:15 PM

Awesome work John. I had already come to the same conclusion. Do you know who I go to for a custom head gasket?

Now If I could just convince you guys to compare head chamber volume (cc) and confirm that both heads use the same valve angle we would all be set. Once these items are confirmed we can take N54 forged pistons and fly-cut the valve reliefs and then we have an N54/52 beast with A BPC TURBO!

12-15-2016, 05:30 PM	#1
John@BPC Second Lieutenant 325 Rep 203 Posts Drives: BMW M3, M4, M5 Join Date: Jun 2016 Location: Raleigh iTrader: (0)	BPC dissects the N52 and N54 block - Comparison inside! We thought we would start a new thread on this topic, since its one of the most sought after topics. "Whats the difference between the blocks on the N52, and N54?" We hear it all of the time. We even have customers that call up and ask if we can compare the head gaskets, the heads, the bolts, rods, and more. We figured we would dedicate an entire few days to taking apart these two motors down to bare block and doing an in depth video blog. Check it out and stay tuned for the next one! John @ BPC
	Appreciate 11 Taskmaster2475.50 jc598897.00 Sgop335669.00 STR8-6IX558.00 PhaseP1023.00 tom.gnade88.50 GottWhat196.00 David0ff1052.00 fravel1648.00 DigiDon216.50 E91 M Sport103.00 Tweet Quote

12-15-2016, 05:32 PM	#2
Taskmaster Banned 2476 Rep 9,004 Posts Drives: M235i 6MT / E92 328 Msport 6MT Join Date: Nov 2013 Location: Florida iTrader: (6)	I just watched the whole thing!
	Appreciate 0 Quote

12-15-2016, 05:34 PM	#3
jc5988 Captain 97 Rep 611 Posts Drives: 2010 328i 6MT Join Date: Aug 2011 Location: Los Angeles iTrader: (0)	wow, nice! __________________ N51- PI - PE - ESS Tuned - SSK - CDV Delete - AFE Header - B12 - Mfactory LSD
	Appreciate 0 Quote

12-15-2016, 06:44 PM	#5
tlow98 Major General 2314 Rep 5,228 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	Nice! Thanks for the leg work on this BPC
	Appreciate 0 Quote

12-15-2016, 07:38 PM	#6
08njSTEP Captain 795 Rep 762 Posts Drives: '07 335i, '66 SS396 Chevelle Join Date: Dec 2015 Location: Manchester, NH iTrader: (0)	Great job! Thank you BPC for giving the skinny on the two engines. Strong or light, pick your poison.
	Appreciate 0 Quote

12-15-2016, 08:17 PM	#7
Grip Grip Lieutenant 188 Rep 545 Posts Drives: E92 335is Join Date: Apr 2015 Location: Greenbrier, TN iTrader: (3)	Wow, great info indeed. Thanks for posting! __________________ - 335is DCT - 10.5 @ 132 and dropping!
	Appreciate 0 Quote

12-16-2016, 10:02 AM	#9
JohnG7 Private 16 Rep 58 Posts Drives: E89 + F30 Join Date: Oct 2015 Location: south of Houston... iTrader: (0)	Great video- very informative... Thanks...
	Appreciate 0 Quote

12-16-2016, 10:08 AM	#10
oli3 Private First Class 42 Rep 188 Posts Drives: BMW Join Date: Sep 2016 Location: Helsinki iTrader: (1)	Nice, saving this for once I get home
	Appreciate 0 Quote

12-16-2016, 10:35 AM	#11
GottWhat Lieutenant 196 Rep 458 Posts Drives: 2008 BMW 335i MT Sport Join Date: Sep 2016 Location: Shelby Township, MI iTrader: (0)	This video is awesome! __________________ 2008 BMW 335i 6-Speed w/Sport Package (Montego Blue)
	Appreciate 0 Quote

12-16-2016, 10:36 AM	#12
sprp85 Lieutenant 97 Rep 406 Posts Drives: S54/N52 Join Date: May 2014 Location: MA iTrader: (3) Garage List 2006 E46 M3 [0.00] 2007 E91 328i [0.00]	Awesome video. Thank you
	Appreciate 0 Quote

12-16-2016, 12:20 PM	#13
Eins Suchtig Private First Class 62 Rep 163 Posts Drives: 2011 SGM 128i MSport Join Date: Jan 2011 Location: Puerto Rico iTrader: (3)	Does the N54 forged stroker crank fits in the N52 block? PD: If so, either rod length or piston wrist pin height will need changes...
	Appreciate 0 Quote

12-16-2016, 12:48 PM	#14
CobraMarty Major 622 Rep 1,402 Posts Drives: 2007 328xi e90 + e92 Join Date: Sep 2010 Location: BimmerMILVs.com iTrader: (7)	Why bother with the N54 crank and the need for custom pistons and only gain 54cc, 2996cc to 3050cc. I don't want to put a N52 head on a N54 block, I want to put a N54 block under my N52 head. Ha.
	Appreciate 1 Taskmaster2475.50 Quote

12-16-2016, 03:15 PM	#15
Hobbs64 Second Lieutenant 38 Rep 215 Posts Drives: 2007 328xi Join Date: Sep 2016 Location: Denver, CO iTrader: (0)	Awesome work John. I had already come to the same conclusion. Do you know who I go to for a custom head gasket? Now If I could just convince you guys to compare head chamber volume (cc) and confirm that both heads use the same valve angle we would all be set. Once these items are confirmed we can take N54 forged pistons and fly-cut the valve reliefs and then we have an N54/52 beast with A BPC TURBO!
	Appreciate 0 Quote