Hi fellow owners, Ive had this 85 for about 6 months and found this GREAT site shortly thereafter.Had a lot of questions,had a few answers, this car has been moving and pulling stuff around this country for twenty five years and a lot of people have had there hands on her,in her and she probably has a lot of stories to tell. well early on I had the 305-350 question.............yesterday I finally got an answer.............Got numbers from heads and checked 6-7 websites and determined its a 1987 crate motor,285-300hp............hears the no14101083...................................now does this mean mgf in 87....or???.....its been a scavenger hunt, an investigation:secret: and awhole lot of other crap I never expected..........but you all know that......................................so heres the part where Id like some info on what Do I really have??????? Was it a recent swap ???and it said FI but its not, so.... thanks in advance

14101083 is a head casting number, heads could be from anywhere and not be related to the block. Those are a GMPP head though, and they should also have a date code. What's the engine block casting number?

http://www.joesantiquecars.com/Chevrolet-engine-block-casting-numbers.html (http://www.anrdoezrs.net/click-3463930-10546635?url=http%3A%2F%2Fwww.joesantiquecars.com% 2FChevrolet-engine-block-casting-numbers.html) <--(site seems to only work properly in Internet Explorer not Firefox)

well I could not read the block stamping noin the front, and could not get at the one on the flange, I know the heads could come from anywhere but Im hoping they came with the engine...........whats the pp mean?

GM Performance Parts: http://www.gmperformanceparts.com/

If there's nothing on the front of the block where the VIN specific numbers usually are that's a good sign it's a crate, or that someone went a little crazy decking the block. :poke: No real way to tell much more that I can think of without seeing the date code on the head or block, or both of course.

got a k158 from the head, im really tryin, and if it aint BIG my eyes dont work well, Im gonna see what k158 adds to the mystery..............ty

No specific year range for the head casting numbers are listed for that head, which makes the 8 which is the year code raise some questions. What you have is K (November), 15 (15th), 8 (most likely '98 ). I say '98 since just from memory I think they started making that 285/300 HP head as a GMPP around the mid 90's. Which would rule out 1988, and I am pretty sure they stopped before 2008 which would be the other option for 8, and also I think you'd know if they were that new. So based on what you've given I'm guessing 11/15/98, 285/300 HP head. But we really need that engine casting number and if possible the engine block date code too to determine if it's a full crate or not. These heads were sold as their own separate set and were a popular upgrade to be thrown on an older engine. So you may still have an older engine that someone removed the VIN code with swapped on GMPP heads. I'm betting you probably do have a full crate engine swap, but there's no way to be sure yet.