s54b32 and s50b32

Sun Feb 20, 2011 12:38 am

can a s54 head bolt straight on to a s50 block ? i have serched on the net and cant find a anser. i know both these moters are almost identical at the bottem and only difrence is the heads, can a swap be done for more power on a N/A moter ? anyone plz help

Sun Feb 20, 2011 1:00 pm

Frany wrote:can a s54 head bolt straight on to a s50 block ? i have serched on the net and cant find a anser. i know both these moters are almost identical at the bottem and only difrence is the heads, can a swap be done for more power on a N/A moter ? anyone plz help

Couldn't say for sure, but I doubt it's worth the expense even if it did. In percentage terms, it's actually a very small gain in power, and most of that is only because the S54 can rev higher as standard.

Ian.

Mon Feb 21, 2011 10:11 am

I don't think they can no.. Waterways or oilways in the wrong place.

Mon Feb 21, 2011 10:43 am

money is no object. want to biuld a N/A m3 e36 evo with as much power posible. any ideas to what i can do to make it a mid 9000 rpm moter ? with out changeing the look of the moter. must look stock

Mon Feb 21, 2011 11:37 am

Frany wrote: with out changeing the look of the moter. must look stock

What race series are you building it for? Sounds like someones up to no good.

Mon Feb 21, 2011 12:40 pm

Well if you put an s54 head onit it will lool like an s54 rahter than an s50 as the s54 head is a single part

S50B32 head is a simple plug an play job

a race spec s54 is good for about 380bhp are you building it or having it built as if money is no object talk to Russ at JCracing in thirsk

Mon Feb 21, 2011 12:49 pm

+1 for JC, you wont get much better TBH

Mon Feb 21, 2011 1:06 pm

ok thought the s50 tapet cover would fit. . . damn what is the most power i can get with the s50b32 lump no turbo or nos. biulding it myself but doing some research before i jump in and change stuf. it is being built for the track. production N/A 6cyl class witch meens roll cage brakes and non vishual engen upgrades except exhaust. so any idea what i can do to make it rev as hi as posible with as much power and torque as posible ?

Mon Feb 21, 2011 1:09 pm

oldroydsr4 wrote:
Frany wrote: with out changeing the look of the moter. must look stock
What race series are you building it for? Sounds like someones up to no good.

haha non vishual mods is non vishual as the ruels clearly state. 6cyl N/A production class.

Mon Feb 21, 2011 1:41 pm

Depends on your budget some the engine builders in germany charge 30K

If it is an s50 then a s50b32 head + throttle bodies + manifold with the s50b30 cam carrier, CNC heads do good job or porting them.

Super tec in the USA for uprated valves, springs, retianers and a shim under bucket setup

decent cams CAT or shrick

Carbon air box, after market ecu ARP's etc

Forged high comp pistons, forged rods.

s50b32 sump oil pump and dip stick
Should be able to put that together for 10k

BHP depends on quality of parts/engine builder/mapping but based on high tunned s50b30 that are in club racing 360-380 if you get it right

Mon Feb 21, 2011 2:30 pm

its a m3 evo it has the s50b32 moter the 321hp version. well so far i have bought titanuim valves and springs wiseco raised crown lightweight slipper pistons and rings hks conrods and had it all balenced with a hks counter weight crank shaft got a stage 4 AC sniczer cams updated vanos system delimit and race chiped (stil running standard ECU with piggy) 6 into 2 into 1 race exhaust and headers. port and polished head and throtel bodies k&n filter slightly bigger injectors higher voltage coils with lower charge time 4 point sparkplugs lighter puleys. going to do a dry sump conversion soon. what can be done with the shim buckets ?