Considering a head swap, suggestions?

[94Camaro]

edit:

ok nm...i just re-read your post.

you are using a Megasquirt. the MS SnS extra code can understand DIS signals and the crank trigger on the 3.4 -- i know a guy with a turbo'd 3.4L OHV with iron heads (he didnt know bout the swap till after he did his turbo setup) and hes been running MPFI for about a year or two with the megasquirt using all of the 3.4L sensors with no problems.

hes helping me put the megasquirt in my car in fact.

the 3.4L on the F-body has the crank trigger on the balancer. if you get a balancer from a 3.4L RWD F-body engine you can use the crank trigger from the 3.4L.

the wheel in the center of the 3.1/3.4 crank (because from what gm told me they are identical) is for the crank position sensor and not the crank trigger.

ill dig up a pic when i get home tonite.

[Guest]

edit:

ok nm...i just re-read your post.

you are using a Megasquirt. the MS SnS extra code can understand DIS signals and the crank trigger on the 3.4 -- i know a guy with a turbo'd 3.4L OHV with iron heads (he didnt know bout the swap till after he did his turbo setup) and hes been running MPFI for about a year or two with the megasquirt using all of the 3.4L sensors with no problems.

hes helping me put the megasquirt in my car in fact.

the 3.4L on the F-body has the crank trigger on the balancer. if you get a balancer from a 3.4L RWD F-body engine you can use the crank trigger from the 3.4L.

the wheel in the center of the 3.1/3.4 crank (because from what gm told me they are identical) is for the crank position sensor and not the crank trigger.

ill dig up a pic when i get home tonite.

WTF??? WHy do you insist on spreading incorrect information?

The Crank trigger wheel inside the block is what is need to drive the ignition, and it is very different from the balancer mounted crank trigger.

The internal trigger used for the ignition is a 7x, while the balancer mounted trigger is a 24x.

MPFI engines do not use the balancer mounted trigger or teh cam position sensor, they do however use the 7x crank trigger to send the proper signals to teh ignitio so that it will fire at the correct crank angles.

The 24x trigger is used by the PCM and is supposed to reduce cranking time at start up.

They are both crank position sensors, but trigger different components, and have very different signals.

[StudlyCamaro]

engine mounts to put a LZ engine into a F-body. It just takes time and money.

if there is anyway i can help with that, feel free to ask

- Aaron

[CNCguy]

if there is anyway i can help with that, feel free to ask

- Aaron

I don't know anyone with a 3.4 Camaro so I can see how the engine mounts. I was going to buy some engine mounts to use for measurements. The mounting holes on a RWD block are not symetrical but when I look up the P/N for engine mounts, it lists the same for both sides. Are the two sides interchangable? On the three blocks that I looked at, the mounting holes are in an "L" pattern but the spacing was different and the pattern was rotated by 180*.

Do you have any detailed pics of the mounts with the engine in and out of a car. If so, that would be a great help.

Thanks,
Marc

[Joseph Upson]

I don't know anyone with a 3.4 Camaro so I can see how the engine mounts. I was going to buy some engine mounts to use for measurements. The mounting holes on a RWD block are not symetrical but when I look up the P/N for engine mounts, it lists the same for both sides. Are the two sides interchangable? On the three blocks that I looked at, the mounting holes are in an "L" pattern but the spacing was different and the pattern was rotated by 180*.

Do you have any detailed pics of the mounts with the engine in and out of a car. If so, that would be a great help.

Thanks,
Marc

I should be making a visit home next week and I might be able to help with this one if you don't have the needed info by then. Mounting the 3.4 RWD engine mount brackets on the 3500 is one of the things I did out of the interest of putting the motor in my cousins S-10 blazer. You can probably solve the diference in the lengths of the bosses on the 3500 and others by making spacers to even them out unless it is necessary to trim the longer ones down instead. You may even need to make a bracket to fully connect the mount to the engine because I recall one mounting boss missing from one side of the 3500 engine.

Another thing you may want to consider and something I would like to know, is how much the crossmember interferes with the larger aluminum oil pan on pre late generation camaros and fbirds which have the old style crossmember. Perhaps a combinatin of moving the engine back some and trimming the crossmember may be enough t make it work.

[StudlyCamaro]

I don't know anyone with a 3.4 Camaro so I can see how the engine mounts. I was going to buy some engine mounts to use for measurements. The mounting holes on a RWD block are not symetrical but when I look up the P/N for engine mounts, it lists the same for both sides. Are the two sides interchangable? On the three blocks that I looked at, the mounting holes are in an "L" pattern but the spacing was different and the pattern was rotated by 180*.

Do you have any detailed pics of the mounts with the engine in and out of a car. If so, that would be a great help.

Thanks,
Marc

I'll have to dig around to find em' but i have at least one extra set of mounts (maybe 2 extra). the mounts are not the same. PM me your address and i should be able to send you a set.

i'll get you some pics soon

-ATL