Its not technically a LS1, but its still an LS based motor. They all share the same basic head/block design, are interchangible, but his block is the iron 6L truck block. When I eventually do the 408 stroker in my car (using the 6L iron block) with AFR heads, it will still be an LS1 if the average person asks. Same goes if I decide to use an aluminum LS2 block to build a 402.
Lone Star Glockers #346
The Kalashnikov Klub #346