Ferocity02

iTrader: (60)

Right now in my 346 I am running the TR 224/224 114. Basically it is the largest cam I can run and safely pass smog. I have heard that as you increase the displacement of a motor, that the cam becomes "smaller" in a sense. So like a 224/224 for a 346 would be considered mild, but for a 427 it would be considered small right? Does this apply to smogable cams too? According to MTI, a 244/244 112 would be the 427ci equivalent... Or is a 224/224 still the largest cam I can run while passing smog? I am thinking any cam I get that is smogable will be severly restricting the power of that large of a motor. I will probably just have to swap cams for smog. But for right now I am toying with the idea of an emmisions friendly 7.0L engine. Thanks!

Bombguy99z28

You could run something in the 230s duration and a 118/119 lobe sep and it might smog... Or just copy the LS7 cam specs since you know that will pass smog.

ArcticZ28

iTrader: (14)

You are def going to be robbing that thing of many hp if you run smaller than a low to mid 240's duration. I would say the TR224 equivalent of a 427 would be something like a mid to high 230's duration cam... maybe even a bit higher. Just FYI, in general you don't build blocks like that if u're looking to pass smog. If you absolutely need to, just stroke your 346. You don't want to be putting all this money into a bigger cubed engine and have to detune it hardcore to pass smog. Just my .02 cents though.

Quickin

I can tell you that I have a 242/242 .610/.610 114 lsa in my 436 and its TINY.
Idles like a stock car. I'm upgrading it to a 248/252 or larger as soon as couple other new parts come in. Than I'll at least have a little lope, because I have ZERO lope now, and alot more power.

MTI is wrong. A 224/224 in a 346 is not the same as a 244/244 in a 427. A 244/244 is small for a 427.

Billiumss

iTrader: (11)

Not true. I tuned a 2002 Z06 with a MTI LS2 427 with a 244 244 112lsa cam and it made 562 HP & 542 TQ at the wheels...

Unless MTI snuck a bigger cam in the long block and didn't tell us about it.

dame

iTrader: (3)

LOL...... search is your friend I asked this question already

https://ls1tech.com/forums/generation-iii-internal-engine/277458-not-your-everyday-cam-question-regarding-big-motor-small-cam.html

Ferocity02

iTrader: (60)

I did do a search but I didnt see that. I am thinking I'll go with something like a 256/256 112, not too big,

Does anyone know if this motor will even run on a stock cam? I would like to sell my TR224 and keep the stocker for smog. Thanks