stock 74 needs advice
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 26
Likes: 0
From: Zanesville Oh
stock 74 needs advice
Hi there, I have a stock 74 with l48.... That being said, im looking for 350-400 hp out of my motor when im finished. Is the 195 hp l48 block strong enough to build that high. (from what i have read its a 2 bolt) Or should i just drive it like it is and save for a crate 350-383 4 bolt?
Instructor
Joined: Mar 2006
Posts: 124
Likes: 1
From: Bowmanville Ontario
Don't be sure that it is a 2 bolt, I also have a 74 L48, it has a 4 bolt block and the number matches. It's easy to pull the pan and look for yourself, costs you a gasket set.
If it's a 2 bolt, I'd go for the crate engine, otherwise look at what condition the blocks in and then make your decision.
Either way, drive it until you have the cash.
My $0.02
If it's a 2 bolt, I'd go for the crate engine, otherwise look at what condition the blocks in and then make your decision.
Either way, drive it until you have the cash.
My $0.02
Intermediate
Joined: Dec 2005
Posts: 40
Likes: 0
From: Las Vegas Nv.
A two bolt block will handle 400hp.
You could consider an Edelbrock top end kit that would get you in the 400hp range.
Spend between $1800 and $2000 and easily do it in a weekend with any skill at all.
The only risk here is the condition of the bottom end and if it can handle the extra power.
For another $1500 you could get around 450hp in a 383.
After a complete rebuild to around 360hp of the L48 in my '75,
I bought a 383 crate and wish I would have done it in first place.
There is no comparison to the low end torque of the stroker. Something that every C3 needs.
You could consider an Edelbrock top end kit that would get you in the 400hp range.
Spend between $1800 and $2000 and easily do it in a weekend with any skill at all.
The only risk here is the condition of the bottom end and if it can handle the extra power.
For another $1500 you could get around 450hp in a 383.
After a complete rebuild to around 360hp of the L48 in my '75,
I bought a 383 crate and wish I would have done it in first place.
There is no comparison to the low end torque of the stroker. Something that every C3 needs.
