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86Z24 hybrid engine build - Advice?
I have been watching this site for some time, and I think that I have found some rather intelligent, and very knowlegeable people on here, so I am posting this in hopes that some of you can help me.
I have an '86 Z24 Coupe, 2.8HO, with a 4-speed stick. Absolute BLAST to drive - with a non-functional cluth petal, I was still taking on 5.0 Mustangs, and first gear was really hard on tires. Unfortunately, after little more than a year with the car, my ignorance got the best of me, and I put #4 rod out the front of the block and starter. Rather than just drop another stock HO back into my girl, I opted to be a little more adventurous, and build a Hybrid 3400, instead. The car has been sitting in my garage for about 5 years, now, and I finally had the money to start my little project, this year. I am now the proud owner of a freshly built Hybrid Shortblock, sitting all nicely wrapped up on the floor of my garage, but I have run into some nasty stumbling blocks, and I am coming to you guys for help.
Components:
Block, oilpan, factory roller cam/lifters, and injectors from an '01 Grande Am GT (3400 SFI)
Crank, rods, pistons, and high-volume oil-pump from DOHC 3.4L (age/application unknown)
Heads, plenums, TB, intake and MAF are all ORIGIONAL to the car, to maintain the Stock appearance under the hood, with the exception of the actual intake vent for the air cleaner, which thanks to some minor body damage just above the grille, now has a vent directed through the header panel into the air cleaner, similar to the Grande Am GT's Ram-Air setup. I will be replacing the plastic intake ducts with either PVC or Stainless, and using a cylinder type K&N-style air filter in the factory housing, and finishing the "Hole" through the header panel with Fiberglass, similar to the old square-bodyTurbo Firefly/Sprints.
Where I'm running into glitches now, is that the DOHC pistons, when installed in the engine, are extending rather noticably PAST the surface of the deck of the block, and I'm not sure now, if even the .062" DOHC head gasket will be thick enough, or if using an "aluminum head" head gasket with a cast iron head will give me problems with leakage due to different expansion/contraction rates.
Any help/advice you could give me would be most welcome.
Also looking for a reasonably priced set of headers that I can use on this setup, used is OK, as I am now on a limited budget to finish the engine, due to a change in employment (read:INCOME), but would still like to drive the car sometime this year, and the stock exhaust manifolds are way too restrictive for this much of a change in displacement and RPM range. Again, advice welcome in this dept.
Thanks.
PS: I know that this setup can be done, as most of my parts combinations have been coming from a running Fiero with a very similar setup
I have an '86 Z24 Coupe, 2.8HO, with a 4-speed stick. Absolute BLAST to drive - with a non-functional cluth petal, I was still taking on 5.0 Mustangs, and first gear was really hard on tires. Unfortunately, after little more than a year with the car, my ignorance got the best of me, and I put #4 rod out the front of the block and starter. Rather than just drop another stock HO back into my girl, I opted to be a little more adventurous, and build a Hybrid 3400, instead. The car has been sitting in my garage for about 5 years, now, and I finally had the money to start my little project, this year. I am now the proud owner of a freshly built Hybrid Shortblock, sitting all nicely wrapped up on the floor of my garage, but I have run into some nasty stumbling blocks, and I am coming to you guys for help.
Components:
Block, oilpan, factory roller cam/lifters, and injectors from an '01 Grande Am GT (3400 SFI)
Crank, rods, pistons, and high-volume oil-pump from DOHC 3.4L (age/application unknown)
Heads, plenums, TB, intake and MAF are all ORIGIONAL to the car, to maintain the Stock appearance under the hood, with the exception of the actual intake vent for the air cleaner, which thanks to some minor body damage just above the grille, now has a vent directed through the header panel into the air cleaner, similar to the Grande Am GT's Ram-Air setup. I will be replacing the plastic intake ducts with either PVC or Stainless, and using a cylinder type K&N-style air filter in the factory housing, and finishing the "Hole" through the header panel with Fiberglass, similar to the old square-bodyTurbo Firefly/Sprints.
Where I'm running into glitches now, is that the DOHC pistons, when installed in the engine, are extending rather noticably PAST the surface of the deck of the block, and I'm not sure now, if even the .062" DOHC head gasket will be thick enough, or if using an "aluminum head" head gasket with a cast iron head will give me problems with leakage due to different expansion/contraction rates.
Any help/advice you could give me would be most welcome.
Also looking for a reasonably priced set of headers that I can use on this setup, used is OK, as I am now on a limited budget to finish the engine, due to a change in employment (read:INCOME), but would still like to drive the car sometime this year, and the stock exhaust manifolds are way too restrictive for this much of a change in displacement and RPM range. Again, advice welcome in this dept.
Thanks.
PS: I know that this setup can be done, as most of my parts combinations have been coming from a running Fiero with a very similar setup
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