Forging engine questions and your experiences

Hello, I have 2 engines on hand coupe 20vt and stilo 2.4.
Will build one forged engine , just unsure if I want to go 2.4.
I would like to hear your experience with different combinations of work done on 2.0 /2.4

Im after good power band and reliability.

So pros and cons of 2.4 conversion ?

For a 2.0 i was thinking to go for higher cr pistons ( 9:1 )
Ported & flowed head possibly 3 angle valve seats (need to do more research)
Fully balanced crank ( would like to know exact benefits for coupe)

Can you guys share your experiences on different builds/parts costs/ reliabity of your coupes ? Thanks

Personally with this I'd go 2.4 as torque gains are greater then a 2ltr, even at 9.0:1.

you mean 2.4 in stilo or coupe block?

Yes Stilo so you have the extra length on the stroke, Flea has a contact for rods etc so it would probably be an idea to message him if you go this route.

What are the choices of rods for 2.0(being nostalgic about original displacement) seen some people using steel rods ? Are they comming of some other car that use same size rods but stronger than coupe? Or they just standart coupe rods?

Standard rods are forged steel, they are fairly strong. Aftermarket rods could be made of forged steel too but they are typically make of forged aluminium for less weight.

Cummins, Pauter, Arrow, Pec, these are all stronger then the standard rod due to the materials used and the treatment in manufacture.
Standard rods are strong but they do fail so I'd compliment any uprated build with a set for durability.

The only way to do a 2.4 correctly is to use the 2.4 block. It is possible to use the 2.0 block, but too many compromises. Either way, it requires 2.4 crank and custom pistons/rods for both conversions.

Thanks for info, ill stick with 2ltr for the moment
Do you have any advices/tricks what to do or not do during build to increase bhp/ torq?
Also , Ive seen someone ported head and removed valve guides(bit that sticks out inside port) is that safe to do ? Any benefits ?

Thanks alot

Do a search in the tuning section mate there are a few threads about which direction to go that will suit your needs and bank balance