LSX block question

What is the weight difference between a stock LS7 block and a LSX block?

Gonna say probably around 75-100 pounds. Do you really need an LSX block though?

Quote:

---

Originally Posted by TA98

Gonna say probably around 75-100 pounds. Do you really need an LSX block though?

---

If your building an engine from the ground up the LSX is a cheaper but heavier alternative. But it really matters what your planning on doing with the car.