Mike94ZLT1

iTrader: (3)

Just wondering, a buddy and I are swapping an LS based engine into his M3 and we were wondering if we could put LS6 heads on an aluminum 5.3 block. Thanks!

MasterMindMotorsport

I know that 5.3 heads will work with an ls6 block... I guess we will see what the guru's say

VIPERBLUELX

iTrader: (2)

LSx in an M3, lets see pics!

joshua022

iTrader: (12)

they'll fit but the bigger combustion chamber may shroud the valves, and also lower the compression ratio

LS6 Silverado

iTrader: (27)

Yes they will fit. They are stock on some 05+ 5.3s. They do lower the compression a bit(62cc chambers vs 65cc chambers) as mentioned above.

Mike94ZLT1

iTrader: (3)

But I can mill them to make up for it I assume?

5.3LJimmy

iTrader: (10)

If it's the aluminum block 5.3 it already has or had LS6 heads from the factory(casting number 243 or 799). They also have flat top pistons to compensate for the larger combustion chamber. Milling still wouldn't hurt though.

LS6 Silverado

iTrader: (27)

Yes, If I remember correctly on the 62cc chamber for every .005" milled is 1cc of chamber volume-

ksk1980

iTrader: (33)

yep they'll work . a guy i work w/ has a 05 silverado that came factory w/ 799 heads. i wouldnt've believed it until i saw it for myself

Jon@Texas-Speed

iTrader: (18)

Yes they should clear fine.

Jon

wheelies247

jon @ texas

what size heads and cam are you running in the ss texas camaro

is that 9s on nitrous ??

Jon@Texas-Speed

iTrader: (18)

Stock bottom-end 346c.i. LS1, TSP Magic Stick 4 camshaft, and PRC 215cc heads. The car is naturally aspirated. It is currently the quickest NA stock-bottomend heads/cam car in the country!

Jon

wheelies247

i think your the man to ask i have a question if you dont mind

will the ms4 cam fit on an ls1 shortblock and ls6 heads p&p or to big of a lift ??

thanks
jorge

ksk1980

iTrader: (33)

unmilled 243's they'll fit but its about 1 of the biggest cams that will from what i understand

wheelies247

ls1 block
ls6 heads p&p
ls6 intake
ms4 cam

going to be a nice street car
will be daily driven

Jon@Texas-Speed

iTrader: (18)

Chances are that the cam will not clear those heads. If they have a larger than stock valve in them, the cam will not clear. What other bolt on's are done to the car? What are your future plans and goals out of it? Let me know and I will see if we can set you up with a cam to meet your needs!

Thanks!
Jon

wheelies247

in the middle of my ls1 mustang swap

would like to be able to run 10s all day long and drive home, to the store, movies, etc its going to be my daily driver. street car.


z06 flywheel & clutch t56 6speed
stock ls1 short block
stock ls6 243 heads p&p apr studs
ls6 intake p&p
ls6 injectors
ls6 rockers

wheelies247

these are the things i have already

Kulijof Cars

How do you find world records like that or records

CarlostheBarbarian

11 yr bump gotta be a world record