supertrick_05 Posted January 10, 2010 Report Posted January 10, 2010 I've been contemplating all of these swaps that I'd like to do in the GP, and I'm not sure on a few things. I know the 3800 will bolt up to a 284 trans, but will a 3400? I thought I read that the 282 will work, but a 284 won't. Can someone confirm this? I don't want to convert all of 284 stuff out for a weaker transmission... Quote
RobertISaar Posted January 10, 2010 Report Posted January 10, 2010 all 660s and the 3800 and derivatives have the same bellhousing pattern... i don't see why it wouldn't work. and i would drop a 3500 in, extra ~20HP from the start with the much better flowing heads... Quote
19Cutlass94 Posted January 10, 2010 Report Posted January 10, 2010 If you have the extra money for the 3500. If not, a 3400 is still a solid start. Quote
GOT2B GM Posted January 10, 2010 Report Posted January 10, 2010 Pulling the LQ1 out of that car, and replacing it with a pushrod engine? Quote
supertrick_05 Posted January 10, 2010 Author Report Posted January 10, 2010 Wow...the 3500 is actually quite cheap in the JY's around here. About $500 for a 50,xxx mile engine! Hmmm...I may have to investigate a little more. Quote
Night Fury Posted January 10, 2010 Report Posted January 10, 2010 Wow...the 3500 is actually quite cheap in the JY's around here. About $500 for a 50,xxx mile engine! Hmmm...I may have to investigate a little more. Expect to have to change the headgaskets, BTW Quote
RobertISaar Posted January 10, 2010 Report Posted January 10, 2010 and make sure it's not the VVT version! Quote
Crazy K Posted January 10, 2010 Report Posted January 10, 2010 and make sure it's not the VVT version! how can you tell? there is a malibu MAXX that has been sitting in a yard near me.... since it was a year old with a 3500... Quote
supertrick_05 Posted January 10, 2010 Author Report Posted January 10, 2010 Yeah, I was looking at the LX9. The LZE has much more power, but has the VVT. Why would I have to replace the head gaskets already? Are they just a bad design or something? Quote
RobertISaar Posted January 10, 2010 Report Posted January 10, 2010 and make sure it's not the VVT version! how can you tell? look for a cam phaser on the timing cover. if it's there, it's gotta be VVT. Quote
supertrick_05 Posted January 10, 2010 Author Report Posted January 10, 2010 how can you tell? there is a malibu MAXX that has been sitting in a yard near me.... since it was a year old with a 3500... http://en.wikipedia.org/wiki/GM_High_Value_engine Quote
Night Fury Posted January 10, 2010 Report Posted January 10, 2010 What is VVT and what's wrong with it? Quote
Crazy K Posted January 10, 2010 Report Posted January 10, 2010 Yeah, I was looking at the LX9. The LZE has much more power, but has the VVT. Why would I have to replace the head gaskets already? Are they just a bad design or something? yes. read about it with Buck and Bob. and make sure it's not the VVT version! how can you tell? I don;t know what that is! is there an RPO difference between the engines? look for a cam phaser on the timing cover. if it's there, it's gotta be VVT. Quote
RobertISaar Posted January 10, 2010 Report Posted January 10, 2010 cam phaser is a black "cylinder" on the timing cover, about where the tensioner would be on a earlier 3x00... the only 3500s that were NOT VVT were the LX9s... Quote
GOT2B GM Posted January 10, 2010 Report Posted January 10, 2010 What is VVT and what's wrong with it? Variable Valve Timing. Involves a bunch more wiring and tuning I'm assuming Quote
RobertISaar Posted January 10, 2010 Report Posted January 10, 2010 Involves a bunch more wiring and tuning I'm assuming not a whole lot more wiring, but tuning would be an issue unless you're good with electronics or happen to have the PCM intended to run it... Quote
Octavarium454 Posted January 10, 2010 Report Posted January 10, 2010 Wow...the 3500 is actually quite cheap in the JY's around here. About $500 for a 50,xxx mile engine! Hmmm...I may have to investigate a little more. You do realize most junkyards take about 50k miles off of all their motors and make a majority of them all say under 100k because everyone seems to think a motor with more than 100k on it is junk. Quote
19Cutlass94 Posted January 10, 2010 Report Posted January 10, 2010 When you buy the motor and tear into it, you can learn alot about how it was treated. Quote
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