Sources for pre-09 5.7 long blocks / cores?
For a long time I thought an Eagle 5.7 was comparable to a 6.1 as (I heard) they dyno'ed similar RWHP. But after talking to some people that owned both, I changed my opinion and the 6.1 is more of a fun motor and feels different due to it's larger cam and shorter runner intake that pulls much higher in the RPM's. The Eagle 5.7 is more of a truck motor and runs out of breath at 5200 RPM and while fun, it doesn't feel as much like a hot rod motor. Don't get me wrong, the 5.7 is plenty fast and fun, just has a different feel.
I think an Eagle 5.7 with a 6.4 cam might feel like a 6.1, but for far less money. With the VVT, the 5.7/6.4 cam combo shouldn't lose any low end torque and might even make more than a stock 6.1, but make comparable power to a 6.1 top end. And I would bet it picks up everywhere compared to your motor now with the ModMan intake.
Ultimate bang for the buck would be a plastic car intake, but if I can't run a 6.4 I would want a 6.1 intake hands down. Absolutely love this look.
For a long time I thought an Eagle 5.7 was comparable to a 6.1 as (I heard) they dyno'ed similar RWHP. But after talking to some people that owned both, I changed my opinion and the 6.1 is more of a fun motor and feels different due to it's larger cam and shorter runner intake that pulls much higher in the RPM's. The Eagle 5.7 is more of a truck motor and runs out of breath at 5200 RPM and while fun, it doesn't feel as much like a hot rod motor. Don't get me wrong, the 5.7 is plenty fast and fun, just has a different feel.
I think an Eagle 5.7 with a 6.4 cam might feel like a 6.1, but for far less money. With the VVT, the 5.7/6.4 cam combo shouldn't lose any low end torque and might even make more than a stock 6.1, but make comparable power to a 6.1 top end. And I would bet it picks up everywhere compared to your motor now with the ModMan intake.
Ultimate bang for the buck would be a plastic car intake, but if I can't run a 6.4 I would want a 6.1 intake hands down. Absolutely love this look.