[LESLIE SMITH]

need help please. have purchased 70 chevelle ss454ci. cast into engine block is hi-perf pa68 above oil filter.is this ls6? also trans has nos. gm 383-707 drivers side. 385-325 pass. side also p1124. is this a m-21?yes its a 4-speed.thanks so much for any help. thanks to bob v for previous help. l.s.454 ls6?

 

[Bomber '67]

Try posting this question in the Tag Team section.

You need to find the numbers/letters stamped (not cast) into the engine stamping pad. The casting numbers will only tell you part of the story. From the information you have given so far, all I can tell is that it is at least a 396.

What proof did the seller give you that it was an LS6 454?

Many long years ago before everyone got so picky about matching numbers and originality I worked the counter at a very large Chevy dealer, and I helped a lot of guys do "Badge engineering". A lot of customers were slapping 454 emblems on 396 cars, even if it still had a 396.

Best of luck, Thomas

------------------
"Bomber" '67 El Camino, Beater comes back to life.
Was 350/TH350 14.90 @ 93mph, 360,000+ miles on car
Now 406 roller, 340rwhp, more hp coming, 3.08 gears
Street radials, left in drive, 13.20 [email protected] mph
8/1/01 added Plum Mist '67 to collection
*New* 468 on its way - going Big Block!

 

[LHULL]

Bomber, I'm trying to identify a 350 block I have where is this engine number stamping pad?

 

[Tom Hendricks]

LHULL, The number should be stamped on the flat surface just ahead of the passenger side head on the front of the engine. Post those numbers and we'll help you.