if not Lt-5 ,then this is gona be my Choice!

[HADI-ZR1]

twin-cam Batten heads... wih 509 cid! :worship:
http://images.hotrod.com/techarticles/p87392_large+1996_chevrolet_impala_ss+engine_view. jpg

http://images.hotrod.com/techarticles/p87394_image_large.jpg

[cuisinartvette]

Got a link on those?

[HADI-ZR1]

Here you r Ron....
http://www.hotrod.com/techarticles/1996_chevrolet_impala_ss_engine_swap/index.html