V6Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.
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I bet dropping that block in was the easiest one you've ever dropped, since it's missing the whole bottom end(or at least the pistons), due to the low weight.
Ive got a question... Ok with the 3.4 block, 3400 heads/intake/fuel injectors/pistons, 260 grind cam, and the 2.8 ecm with this hybrid run smoothly? I mean I know it might have like a small lope or whatever because of the cam but is like the idle going to be really jumpy or should it sit and stay in one spot while idling? Also which head gaskets do i need? Sorry not trying to hijack thread or anything just figured this might be the place to ask. Thanks
Wow nice work there, i was originally was just going slap a turbo on my 3.1, but now im considering a 3.1 or 3.4 hybrid with a turbo , curious about something though, exactly what was the process you went through from switching from a distibutor to what you convert to? coil packs? and how did u manage the ecu with that swap? and did u use the 60 degree crank, rods, and pistons out of either a rwd or fwd block?? (well same spec internals that came normally with the 3.4), basicly what im trying to find out could i just pick up a 3.4l block out of like, lets say a 93 to oh 95 maro with its stock interals(upgrading to forged of course for boost) and slap the 3400 intake and heads on there, and switch to coil packs and be good to go?and im sure id have to splice some wires for the ignition change though huh?
oh btw was that a aluminum block u used? looks all nice and shiny lol
Wow nice work there, i was originally was just going slap a turbo on my 3.1, but now im considering a 3.1 or 3.4 hybrid with a turbo , curious about something though, exactly what was the process you went through from switching from a distibutor to what you convert to? coil packs? and how did u manage the ecu with that swap? and did u use the 60 degree crank, rods, and pistons out of either a rwd or fwd block?? (well same spec internals that came normally with the 3.4), basicly what im trying to find out could i just pick up a 3.4l block out of like, lets say a 93 to oh 95 maro with its stock interals(upgrading to forged of course for boost) and slap the 3400 intake and heads on there, and switch to coil packs and be good to go?and im sure id have to splice some wires for the ignition change though huh?
oh btw was that a aluminum block u used? looks all nice and shiny lol
You will need to get pistons for a 2000+ 3400 i believe in order to have the right CR, but since your running a turbo you might want to look into the 3500 topend. It flows better than the 3400 and i think you can be safe running it with the 3.4 rwd pistons (cr is a lil high but some people want that) As far as the ignition stuff goes search for a thread call "switching to coil packs" or something like that. It should be fairly easy just a few wires to cut and splice
You will need to get pistons for a 2000+ 3400 i believe in order to have the right CR, but since your running a turbo you might want to look into the 3500 topend. It flows better than the 3400 and i think you can be safe running it with the 3.4 rwd pistons (cr is a lil high but some people want that) As far as the ignition stuff goes search for a thread call "switching to coil packs" or something like that. It should be fairly easy just a few wires to cut and splice
but i thought i read somewhere(i think it was in this thread, not sure)that the 3500 top end wouldnt fit on the 60 degree block, just the 90 degree block, did i read wrong? and can i find the 3400 top ends basicly on any late 90's to early 2000's grand am gt and grand am prix? just to get my info right before i go searching through junkyards for top ends.
but i thought i read somewhere(i think it was in this thread, not sure)that the 3500 top end wouldnt fit on the 60 degree block, just the 90 degree block, did i read wrong? and can i find the 3400 top ends basicly on any late 90's to early 2000's grand am gt and grand am prix? just to get my info right before i go searching through junkyards for top ends.
You've got it backwards. The 3500 is a 60* engine. The 2.8/3.1/3.4 is also a 60*. They fit.
I don't believe you can bore out a 2.8 or a 3.1 to the 3.4 bore size...safely. So no there isn't any way to use the 3500 heads on a 2.8/3.1. Your best bet, if you want to do a 3x00 head swap is find some 3100/3400 and get a P&P done to them.
Quote:
Originally Posted by firstfirebird
The problem is the chambers on the 3500 heads will hang over the piston bores
I knew it was something with the bore/chamber size.
, curious about something though, exactly what was the process you went through from switching from a distibutor to what you convert to? coil packs? and how did u manage the ecu with that swap? and did u use the 60 degree crank, rods, and pistons out of either a rwd or fwd block?? (well same spec internals that came normally with the 3.4), basicly what im trying to find out could i just pick up a 3.4l block out of like, lets say a 93 to oh 95 maro with its stock interals(upgrading to forged of course for boost) and slap the 3400 intake and heads on there, and switch to coil packs and be good to go?and im sure id have to splice some wires for the ignition change though huh?
