Help with block ID

[EZ Nova]

Sorry to say, it's nothing special, but this was the motor in my 1969 SS396/350 4 speed car when I got it.

3999290
GM 10 T
J 28 72

It's a 4 bolt block. Standard bore.

That's all I can find on this motor. Now it did get a new from GM:

Steel Crank, std. std.
3/8 "dimple" rods, I put in ARP wave lok bolts
Pistons are 3969974 with C/A file fit rings.

The above has about 600 mile since the new GM parts, and the rings, bearings and rods bolts have less then 20.

I was wonder what it's worth?

I was and did a couple of time race this motor, but once I found out what it was, and seeing everything inside was standard and reworked, I bought a 427. It was built to 375hp specs from what I gather.

Thanks, John

[WILMASBOYL78]

The 290 replaced the 854 block sometime in 1972 for all 396/402 applications...it was produced primarily in the 2 bolt format...but some CE and over the counter engines had the 4 bolt mains....our 70 L78 car has a 290 CE block...as for value....should we assume you have the correct rect. port BB heads...??? This is basically an L78 engine..you couldn't buy those parts and build it for less than $5k..maybe more depending on the heads, manifolds, bolt ons, etc.

wilma

[EZ Nova]

Wilma, thanks for the reply. I "HAD" a set of '70 closed chamber LS6 heads, but they were sold, so no intake or heads, just a short. I just feel it's worth something to someone and not just to beat on it as a "normal" BBc.