What's a Hybrid?
#1
What's a Hybrid?
I can see in to the future....
^^^ These are the old iron heads and LIM.
^^^ 3500 heads loosley bolted.
^^^ Look how shiney those 3500 heads are The LIM and the timing cover don't jive, but that will soon be taken care of.
^^^Say Bye-Bye distributor
^^^And here is what future looks like.
Tomorrow clearance the timing cover, and start making templates for the accessories. Got to make sure there is plenty of room for some forward facing headers. The A/C is staying, along with P/S (steering for now).
More pics are here (click)
Also have to make a decision on the throttle cable location. Does anybody know what I can get a nice long cable set-up? I might want to have it pull from the front.
^^^ These are the old iron heads and LIM.
^^^ 3500 heads loosley bolted.
^^^ Look how shiney those 3500 heads are The LIM and the timing cover don't jive, but that will soon be taken care of.
^^^Say Bye-Bye distributor
^^^And here is what future looks like.
Tomorrow clearance the timing cover, and start making templates for the accessories. Got to make sure there is plenty of room for some forward facing headers. The A/C is staying, along with P/S (steering for now).
More pics are here (click)
Also have to make a decision on the throttle cable location. Does anybody know what I can get a nice long cable set-up? I might want to have it pull from the front.
Last edited by firstfirebird; 08-25-2007 at 08:57 PM.
#2
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Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: What's a Hybrid?
You're not talking about my wife's Toyota?
[/QUOTE] Say Bye-Bye distributor [/QUOTE]
I may have missed this part as I have not followed this story completely from the beginning. Where are your crank and cam signals coming from?
[/QUOTE] Say Bye-Bye distributor [/QUOTE]
I may have missed this part as I have not followed this story completely from the beginning. Where are your crank and cam signals coming from?
#5
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Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: What's a Hybrid?
So, the 3.4 rwd blocks are the same as the early 3.4 fwd blocks? Why else would the block have a sensor?
#6
Re: What's a Hybrid?
The crank is from a 3100 (late FWD denotation for the 3.1) and has DIS. The 3.4 has the same stroke, larger bore from the 3.1. A 3.1 is a stroked 2.8.
The 3.4 was a totally different concept to the 2.8/3.1, with the ecxeption of the iron heads. The 3400 is far superior to the 3.4 in many ways. It came with roller cam, roller fulcrum rockers, main priority oiling, and the aluminum heads comming with larger ports, larger valves that are canted for flow, heart-shaped combustion chambers, etc, etc. GM is still improving on the 60* platform, and I've mentioned before, are currently pulling almost 300hp N/A.
The 3.4 was a totally different concept to the 2.8/3.1, with the ecxeption of the iron heads. The 3400 is far superior to the 3.4 in many ways. It came with roller cam, roller fulcrum rockers, main priority oiling, and the aluminum heads comming with larger ports, larger valves that are canted for flow, heart-shaped combustion chambers, etc, etc. GM is still improving on the 60* platform, and I've mentioned before, are currently pulling almost 300hp N/A.
#7
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Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: What's a Hybrid?
Okay, so the 3.4 and 3100 can swap cranks?
The 3.4 as used in 4th gens has the same block as the first 3.4 front wheel drives? I understand that the pistons go with the heads, the early 60 degrees did that as well...
What is the interchangeability to your knowledge as far as 3.4 engines go between front wheel drive and 4th gen usage?
The 3.4 as used in 4th gens has the same block as the first 3.4 front wheel drives? I understand that the pistons go with the heads, the early 60 degrees did that as well...
What is the interchangeability to your knowledge as far as 3.4 engines go between front wheel drive and 4th gen usage?
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#8
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Car: '87 Camaro / '87 Chevy K10
Engine: 3.4L MPFI (soon) / 5.7L TBI
Transmission: 700R4 / 700R4
Axle/Gears: 3.42 / 3.73
Re: What's a Hybrid?
I've got plans to do the same thing for my Firebird... I can't wait until it's time to start on my own! That just looks soooo awesome.
#9
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Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: What's a Hybrid?
Why didn't you just drop in the complete front wheel drive engine and just make your motor mounts custom? Seems like less work that way...
#10
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Re: What's a Hybrid?
The 3.1, 3100, 3.4 (DOHC and OHV) and 3400, all share the same crank. Many 3400s have "3.1L" cast right into the crank. All use the 3.31" stroke.
the genI 2.8/3.1 blocks do not have a provision for the crank trigger, an external custom wheel such as mine has to be used. The genII, genIII and 3.4 (DOHC and OHV) have provisions for the crank trigger. This is why starting with a 3.4 block (from the 4th gen F-body) is the easiest starting point to build a hybrid such as this, it will bolt into the chassis, and will accept the heads all the way up to the OHV 3500. The only drawback is the old oiling system, flat tappet cam, no windage tray, and lack of crossbolted mains.
FF, I told you about the tab on the front cover long ago.
You may be able to use a 4.3 throttle cable, Wolf on FTV6 mentioned that to me in my short stint over there. Get a hold of him for specifics.
I haven't decided what I'm going to do about the TB, I need some serious flow, so I've been debating on running dual TBs, in either a parallel configuration, or progressive, or a single larger TB. Trying to find one from the wreckers that also has some emmisions ports (ported vacuum).
#11
Re: What's a Hybrid?
Okay, so the 3.4 and 3100 can swap cranks?
The 3.4 as used in 4th gens has the same block as the first 3.4 front wheel drives? I understand that the pistons go with the heads, the early 60 degrees did that as well...
What is the interchangeability to your knowledge as far as 3.4 engines go between front wheel drive and 4th gen usage?
The 3.4 as used in 4th gens has the same block as the first 3.4 front wheel drives? I understand that the pistons go with the heads, the early 60 degrees did that as well...
What is the interchangeability to your knowledge as far as 3.4 engines go between front wheel drive and 4th gen usage?
Now with 4th Gen you mention, you mean 4th gen fbod? The 3.4 block is almost identical to the 3.1 block with the excetion of the DIS mounting location (much like the difference between a 305 and 350 blokc ). The 3400 FWD has roller lifters, and there are no such provisions in a 3.4 block.
#12
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Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: What's a Hybrid?
Okay!
You've convinced me...
I WILL CONTINUE WITH MY BUICK ENDEAVORS!!
I am not bad mouthing your work by any means. I think it's great. It's just not the road I see in front of me. I need a larger displacement to make me feel better and it's easier with the Buicks.
Good luck, guys!!
You've convinced me...
I WILL CONTINUE WITH MY BUICK ENDEAVORS!!
I am not bad mouthing your work by any means. I think it's great. It's just not the road I see in front of me. I need a larger displacement to make me feel better and it's easier with the Buicks.
Good luck, guys!!
#13
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Re: What's a Hybrid?
No there were no early 3.4 FWD's, they were all 3400's. There was a time where they had aluminum FWD heads and they were called 3.1/2.8, that was Gen2. All RWD's are Gen1 blocks. Gen3 had two major changes, pre-'00 for the 3100 and pre-97 (IIRC) for the 3400, where the earlier heads/intakes had slightly smaller valves and ports.
Now with 4th Gen you mention, you mean 4th gen fbod? The 3.4 block is almost identical to the 3.1 block with the excetion of the DIS mounting location (much like the difference between a 305 and 350 blokc ). The 3400 FWD has roller lifters, and there are no such provisions in a 3.4 block.
Now with 4th Gen you mention, you mean 4th gen fbod? The 3.4 block is almost identical to the 3.1 block with the excetion of the DIS mounting location (much like the difference between a 305 and 350 blokc ). The 3400 FWD has roller lifters, and there are no such provisions in a 3.4 block.
Also a correction to your fist line, there were early FWD 3.4s, they were just DOHC.
#16
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Car: 91 Camaro
Engine: 3.1/3100 in progress...Turbo Soon
Transmission: 700r4
Re: What's a Hybrid?
I remember hearing something about the timing cover, but I dont remember exactly what it was. Shed some light on that. Also nice work so far. I also like how the plastic filler panel, in front of the rad., holds tools...and beer
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Car: 09 Cobalt SS Sedan. 92 Z28 vert
Engine: 2.0T EFR6758; 5.0TT T3/T4 8psi
Transmission: F40; 700r4
Axle/Gears: 3.76 LSD; 3.23 posi
Re: What's a Hybrid?
That crank looks familiar, haha. I hope its up to the task when we crank the boost on my brothers car! 19yr old tranny mount couldn't handle it at 5 psi, ah well. All looks sweet though.
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Car: 09 Cobalt SS Sedan. 92 Z28 vert
Engine: 2.0T EFR6758; 5.0TT T3/T4 8psi
Transmission: F40; 700r4
Axle/Gears: 3.76 LSD; 3.23 posi
Re: What's a Hybrid?
Yeah, his had the notches and the same casting numbers on it as the one pictured above. "3.1L" and "981" I think thats what it said... been a little while now. I read that 981 was the same casting used in the TGP in 91?or92?or93? I read it on some TurboGrandPrix website and they were bragging about it being stronger than something... I don't remember.
When I saw the crank for sale, I was thinking $99 shipped for a brand new 60v6 crank... I'll MAKE it work.
When I saw the crank for sale, I was thinking $99 shipped for a brand new 60v6 crank... I'll MAKE it work.
#21
Re: What's a Hybrid?
Where did you find it for $100. The 981 is just a cast crank, but I haven't heard of anybody breaking one. It's rated to 7200RPM IIRC, but I think it has to do with the symmetrical 120* fire of the 60* V6. the newer 3500 got a steel crank, but has to be re-ground to work in our cars.
Last edited by firstfirebird; 08-26-2007 at 10:34 PM.
#22
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Car: 09 Cobalt SS Sedan. 92 Z28 vert
Engine: 2.0T EFR6758; 5.0TT T3/T4 8psi
Transmission: F40; 700r4
Axle/Gears: 3.76 LSD; 3.23 posi
Re: What's a Hybrid?
I picked it up from a machine shop up here in MD selling it on ebay.
#23
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Re: What's a Hybrid?
----------
Where did you find it for $100. The 981 is just a cast crank, but I haven't heard of anybody breaking one. It's rated to 7200RPM IIRC, but I think it has to do with the symmetrical 120* fire of the 60* V6. the newer 3500 got a steel crank, but has to be re-ground to work in our cars.
The crank itself will fit in the earlier blocks, but the rod journals are much larger than the earlier 660s, and require block machining to clear the rod journals. It has yet to be determined if the earlier blocks will actually have enough material to accomplish this.
I have not yet determined if it's a steel crank or not, I've seen people say it is and others say it is not.
Last edited by Six_Shooter; 08-26-2007 at 10:55 PM. Reason: Automerged Doublepost
#24
Re: What's a Hybrid?
Another correction. :P
The crank itself will fit in the earlier blocks, but the rod journals are much larger than the earlier 660s, and require block machining to clear the rod journals. It has yet to be determined if the earlier blocks will actually have enough material to accomplish this.
I have not yet determined if it's a steel crank or not, I've seen people say it is and others say it is not.
The crank itself will fit in the earlier blocks, but the rod journals are much larger than the earlier 660s, and require block machining to clear the rod journals. It has yet to be determined if the earlier blocks will actually have enough material to accomplish this.
I have not yet determined if it's a steel crank or not, I've seen people say it is and others say it is not.
#25
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Re: What's a Hybrid?
I said the 3100 and 3.1 cranks are interchangeable . I'm aware of the journal differences, but there was no 3.1 at that time.
#26
Re: What's a Hybrid?
Sorry, I mistook early for early 2.8's (small journal). Yes, the crank (or block) has to modified. I would think it would be easier/cheaper to turn the crank down. The rod journals are also too big, aren't they (or is that the 3900)?
#28
Re: What's a Hybrid?
I looked at the possbility of using a 3900 crank (saw one on ebay for $100), but the work it would take wasn't worth it to me. The rod journals could be offset ground to get another .01" of stroke, and the reluctor wheel is 52x. I just decided to stay with the 3.4 crank for now.
#29
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Car: 88 prelude si/91 camaro rs
Engine: 2.0/3.1
Transmission: D2J5/700r4
Axle/Gears: 3.23
Re: What's a Hybrid?
thats head looks beautiful i would love to do that to my car,nice clean and alumized up lol i love it.and with a boost set up it must look disgustingly pretty ,nice work so far
#30
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Car: '82 Sport Coupe/'89 bird/'77 280z
Engine: 355/2.8/L28E(t)
Transmission: TH350/T5/4 spd
Axle/Gears: 3.73/3.42/3.54
Re: What's a Hybrid?
What are you ding for the oil pump drive?(I'm assuming it's driven from the distributor)
Are parts from the 3.8 4th gens(or fwd for that matter) interchangeable?
Are parts from the 3.8 4th gens(or fwd for that matter) interchangeable?
#31
Re: What's a Hybrid?
No the 3.8 (actually called a 3800 Series II) is a 90* engine that bolts to a 60* tranny (small corporate pattern), and are not interchangeable with a 60*. The heads are from a 2004 Malibu, and will get me about 8.8 or 8.9:1 compression with 3400 pistons.
I was origionally going to use the 2.8/3.1 block, but since I needed a rebuild anyways (detonated and comprimised a rod bearing), I decided to rebuild a 3.4. 3500 heads won't fit the 3.1/2.8 bore because the combustion chambers will overlap the deck. 3400/3100 heads even will slightly shroud the valves with the side of the cylinder wall, but the benifits of the large valves and ports outweigh this.
Here are the differences between the iron, 3400 and 3500 heads...
https://www.thirdgen.org/forums/v6/4...re-3400-a.html
and more...
http://s158.photobucket.com/albums/t...bird/headpics/
http://s158.photobucket.com/albums/t...pics/?start=20
Remember, you will probably need to use the FWD pistons that correspond to the engine in order to have reasonable compression, especially if you stay with a 2.8.
#32
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Car: '82 Sport Coupe/'89 bird/'77 280z
Engine: 355/2.8/L28E(t)
Transmission: TH350/T5/4 spd
Axle/Gears: 3.73/3.42/3.54
Re: What's a Hybrid?
Thanks, I knew the 3800's were different, just not how different.
I need to stay away from you people, I've had my bird for less than a month and I'm already thinking about what to do to it.
Edit: What pistons are you using? 3400 fwd?
2nd edit: the 3.4 and 3500 flow seems very close, what advantage does the 3500 head hold over the 3.4?
Sorry for all the questions, but you got me thinking.
I need to stay away from you people, I've had my bird for less than a month and I'm already thinking about what to do to it.
Edit: What pistons are you using? 3400 fwd?
2nd edit: the 3.4 and 3500 flow seems very close, what advantage does the 3500 head hold over the 3.4?
Sorry for all the questions, but you got me thinking.
Last edited by 327???; 09-03-2007 at 10:42 PM.
#34
Re: What's a Hybrid?
Edit: What pistons are you using? 3400 fwd?
2nd edit: the 3.4 and 3500 flow seems very close, what advantage does the 3500 head hold over the 3.4?
2nd edit: the 3.4 and 3500 flow seems very close, what advantage does the 3500 head hold over the 3.4?
The 3500 chambers are larger, valves are already unshrouded by the factory, better plenum/UIM design plus the benefit of more flow.
The older heads in these pics are from the 3500 (notice the room for porting )...
http://s158.photobucket.com/albums/t...bird/headpics/
http://s158.photobucket.com/albums/t...pics/?start=20
https://www.thirdgen.org/forums/v6/4...mparisons.html
https://www.thirdgen.org/forums/v6/4...re-3400-a.html
Any update on the build?
Don't worry, I won't leave you in the dark . Haven't heard much in your "man down" thread either .
#35
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Car: 91 Camaro
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Re: What's a Hybrid?
Well its pretty much in the same spot as it was last time I posted about it. Still waiting for my buddy to get back to me. Hes one of those guys that you have to keep pushing to get stuff done Im getting tired of just letting it sit, so Im contumplating pulling the engine/tranny soon.
#38
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Car: '82 Sport Coupe/'89 bird/'77 280z
Engine: 355/2.8/L28E(t)
Transmission: TH350/T5/4 spd
Axle/Gears: 3.73/3.42/3.54
Re: What's a Hybrid?
So, firstfirebird, just out of curiosity, since you're not gonna be using the 3400 top end what are you doing with it?
#39
Re: What's a Hybrid?
----------
I ordered the upper end gasket kit today from GM Parts Direct. They were $150 delivered. The LIM problem of the earlier 60*'s is a thing of the past with the new metal gaskets . The RTV that goes between the block and LIM is now eliminated with the red rubber gaskets you see. I will just have to drill a couple of holes in the block to hold them during assy.
I had to pirate a pic from another site because it's 7-10 days to be sent out. I guess that's what happens when you use parts that are less than 3yrs old (no aftermarket support yet).
I also should be getting the LS6 springs soon (good for 5.75" lift!). Then it's on to fitting the springs, porting the heads/manifolds, and modifying the combustion chambers.
Next purchase is going to be the rocker studs, so I can use the 1.7 roller tips that I have from a SB Ford. I'm just unsure if I want to use the 8mm studs that will bolt right into the heads, or drill/tap them to accept 10mm studs since I will be in an adjustable rocker configuration, and don't need a stud breaking at or over 7000RPM .
Last edited by firstfirebird; 09-08-2007 at 12:05 PM. Reason: Automerged Doublepost
#41
Re: What's a Hybrid?
I saw other guys use the red gaskets with no problems, one has been over a year. I just like the idea of a gasket designed for it, rather than that fat bead that I hate. I know a thin layer never hurts on the other gaskets, on the upper manifolds I have used a little spray adhesive to hold them.
#42
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Re: What's a Hybrid?
I saw other guys use the red gaskets with no problems, one has been over a year. I just like the idea of a gasket designed for it, rather than that fat bead that I hate. I know a thin layer never hurts on the other gaskets, on the upper manifolds I have used a little spray adhesive to hold them.
I use RTV and never have a problem.
#43
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Car: '82 Sport Coupe/'89 bird/'77 280z
Engine: 355/2.8/L28E(t)
Transmission: TH350/T5/4 spd
Axle/Gears: 3.73/3.42/3.54
Re: What's a Hybrid?
I traded the heads for a ported/rebuilt Eaton M90, the LIM for a set of 3400 pistons, and sold the UIM to GrimmCS. Right now, though, there is someone selling a set of big port 3400 heads and LIM on 60degreev6.com for $150IIRC (Buy/Sell/Trade section). The heads are brand new.
Maybe after I buy the tranny for my winter beater and a laptop for school....
#45
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Car: '86 SC
Engine: 2.8
Transmission: 700r4
Axle/Gears: 3.42
Re: What's a Hybrid?
isnt it bad to set a crank down like that? wont it "bend" and get out of balance? i thought you were suppose to hang them on there end?
#48
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Re: What's a Hybrid?
Swaps mostly, since the 3500s are pretty new.
It's only bad to leave a crank like that. The chances of the crank actually flexing is pretty low. I've left cranks like that for like a year, sat in a block, turned just fine, added and torqued main caps also turned just fine.
It's only bad to leave a crank like that. The chances of the crank actually flexing is pretty low. I've left cranks like that for like a year, sat in a block, turned just fine, added and torqued main caps also turned just fine.