rockitraul

I am having a 2.4 engine built for our CORR off road race truck and i need to know if the 2.2 head will fit on a 2.4 block. Can anyone help???

rlinden86

hmmm i would say there similar but the do you mean the header or the HEAD for valves and rockers and stuff. cuz if its the header it might fit both. if its the head it wont fit the 2.2 the 2.5 is bigger.

ryan.

Brandon97Z

iTrader: (1)

I believe it will fit onto the block but you have to take into consideration the 2.4's head has all the vvt componets the 2.2 head does not. I'd stick with the 2.4 head, p&p and contact JBP for cams/springs/vavles etc.

nramlow2006

good choice for a block to start out with.. 1500 hp ftw

YellowLT

the 2.2 head will not work on the 2.4, but i would contact JBP to see if they can do something like this for the 2.4.
http://www.jbodyperformance.com/new/...catName=JP0940

rockitraul

The ecotec 2.4 block has new rods and pistons and other work done to it, now we have the head issue . We have the 2.2 ecotec head that has extensive work done to it.this motor will be naturally aspirated and need to get 300+ hp out of it. We have had lots of people tell us this head will work on the 2.4 block and alot of people telling us it wont...I AM SO LOST!!!!!!!

Brandon97Z

iTrader: (1)

There is a member here, his name is mvp, using a 2.4 block with lsj head. By using the 2.2 you will lose the vvt but it will bolt up.

rockitraul

what is the vvt?

07cobaltowner

variable valve timing

Piston engines normally use poppet valves for intake and exhaust. These are driven (directly or indirectly) by cams on a camshaft. The cams open the valves (lift) for a certain amount of time (duration) during each intake and exhaust cycle. The timing of the valve opening and closing is also important. The camshaft is driven by the crankshaft through timing belts, gears or chains.

The profile, or position and shape of the cam lobes on the shaft, is optimized for a certain engine rpm, and this tradeoff normally limits low-end torque or high-end power. VVT allows the cam profile to change, which results in greater efficiency and power.

At high engine speeds, an engine requires large amounts of air. However, the intake valves may close before all the air has been given a chance to flow in, reducing performance.

On the other hand, if the cam keeps the valves open for longer periods of time, as with a racing cam, problems start to occur at the lower engine speeds. This will cause unburnt fuel to exit the engine since the valves are still open. This leads to lower engine performance and increased emissions.

Pressure to meet environmental goals and fuel efficiency standards is forcing car manufacturers to turn to VVT as a solution. Most simple VVT systems (like Mazda's S-VT) advance or retard the timing of the intake or exhaust valves. Others (like Honda's VTEC) switch between two sets of cam lobes at a certain engine RPM. Still others (like BMW's Valvetronic) can alter timing and lift continuously, which is called Continuous variable valve timing or CVVT.

rockitraul

if the 2..2 head doesnt have the vvt, will I lose lots of horsepower? or will it just be emission crap. this engine wil be in an off raod race truck so emissions arent a problem

Brandon97Z

iTrader: (1)

Here ya go straight from the very knowledgeable Maven of ecotecforum .com:

"HEADS: or most specifically a 2.0LSJ/LK9 or L61 head on the 2.4L LE5 block. YES you CAN put a non VVT head on the 2.4L block. Its a simple bolt on deal and only requires the use of the LE5 headgasket no matter what head you use. YES YOU CAN MAKE AN L61 or LSJ HEADED 2.4L LE5 WITH NO MODS"

They have a sticky over there about what parts the ecotecs can mix and match pretty good info. Not sure on the performance difference, since we aren't able to change the vvt settings yet. I'm sure you can get some ponies out of her by using a built le5 head. However using the 2.2 built head isn't really a bad thing. Simplifies the motor and wiring/engine managment. Since this is going in an off road truck thats prolly a good thing for you, less headaches. Anyways i'm rampling and need to get to work.

rockitraul

Thanx for all your help guys I will keep you all posted on how it all works out. It should be a screamer . CBM out of Ontario CA will be doing the build. Great guys to work with on your ecotec motors.We should be a bit over 300 hp naturally aspirated.

Brandon97Z

iTrader: (1)

Deffinatly let us know how the build goes. Many are contemplating doing a na build and this would be some good info for those people to have.

rlinden86

yeah i thought that you could put the 2.4 head on the 2.2 or maybe even the 2.0 but not sure bout the 2.0 but should work with 2.2 but then youd have to do some serious tuing for the vvt on the 2.2 with the 2.4 head. but that should be interesting.

ryan.

Maven

iTrader: (1)

You cant put a VVT head on a non VVT block without mods to the head(and why would you want to, theres very limited cam selection for the VVT engines and the heads are heavier, theres no flow benefits to the VVT heads as all ECO heads use the same size valves)

You can put any head you like on a VVT block.

pjk91

has anyone put an LSJ head on an LE5 yet?

Brandon97Z

iTrader: (1)

yes there's a guy with a redline that is doing that. he made a post on here not sure what his name is.

Jamesderi

What would be the best for an L61 block? Rebuild the stock head or switch to????

DFZ24

iTrader: (5)

WE HAVE A WINNER!!!! DING DING DING
lol
sorry man i had to

a 7 year revival thread.