96 topend swap to 91-93?

[LakeFXGP96]

I did a search but didnt find much related to this.

Has anyone tried such a swap or can anyone tell me if there are any differences I should be aware of with the heads and intake fitting to a 93? This will have a separate throttle body of coarse, but are the sensors on the 96+ Throttle body much different?

Im thinking Ill try this in the spring, and over the winter Ill open up the 96+ intake and bell the throttlebody, later ill get some lifters, a chip and a timing tool and just do it all at once come spring time.

meh, an extra 20 peak hp i figure will make this thing a little more fun! I need new lifters anyway, mine are a little noisy i think. I rebuilt only the bottom end of the motor and used some heads with 80K on them without doing anything to them, so either the valvetrain sucks or the lifters are unevenly warn from the sounds of it.

[dohcfiend]

RE: 96 topend swap to 91-93?

you did not search very hard. there are several write-ups on this as well as some threads littered around the site on this subject. if u have all the pieces, the swap is very simple. only thing that is mildly difficult is the egr, most choose to delete it at that point in the swap.

intake will bolt on to a pre 96 head np.

need to know anything else, don't hesitate to ask.

[SappySE107]

RE: 96 topend swap to 91-93?

I havent had a chance to see if the adapter plates for the pushrod motors will work with the DOHC setup. Its been done but at least 3 people that I can think of, probably more though.

When you do the swap, let me know. I want to see how the computer reacts to that setup (whether its heads and intake or just intake).

[OldSkoolGP]

I heard that OldSkoolGP did a write-up on how to do it after he did it on his car. I think it's on the site here somewhere. Yeah, here's the link:

http://www.60degreev6.com/modules.php?op=modload&name=News&file=article&sid=24

Now to do something about those rabid ninja kittens... :wtf:

[Scott205]

Sorry I am confused, are you bolting a 93 top end on a 96 motor? or a 96 intake onto a 93 engine, which heads? I just bolted in a 96 engine to my 92 Cutlass with OBDI wiring so I can probably answer a few questions either way.

[LakeFXGP96]

Np. its a 93 OBD1 that i rebuilt the bottom end of, but didnt touch the heads at all. They are stock 80K heads with factory springs/retainers etc. My plan was to leave them alone, run them for a while and eventually hope to find 96 heads to rebuild and port the intake/exhaust ports on just a little. This is a daily so really just looking for a little kick, not wicked performance like oldskool . So it will be obd1, 93 shortblock with 96 a topend.

I know from searching they all bolt up but until this point i didnt know what the deal would be with the EGR or the wiring and different sensors on the new heads or if i can use ALL of the old sensors--or even a mix. for instance i dont even know if a 96 has a MAF and whether its integrated into the standalone throttle body for example.

Ben, if you think that you might be able to tune a little differently on OBD1 with a 96 topend, ill buy your chip and let you experiment with it if you like!

[LakeFXGP96]

Np. its a 93 OBD1 that i rebuilt the bottom end of, but didnt touch the heads at all. They are stock 80K heads with factory springs/retainers etc. My plan was to leave them alone, run them for a while and eventually hope to find 96 heads to rebuild and port the intake/exhaust ports on just a little. This is a daily so really just looking for a little kick, not wicked performance like oldskool . So it will be obd1, 93 shortblock with 96 a topend.

I know from searching they all bolt up but until this point i didnt know what the deal would be with the EGR or the wiring and different sensors on the new heads or if i can use ALL of the old sensors--or even a mix. for instance i dont even know if a 96 has a MAF and whether its integrated into the standalone throttle body for example.

Ben, if you think that you might be able to tune a little differently on OBD1 with a 96 topend, ill buy your chip and let you experiment with it if you like!

[LakeFXGP96]

Slow ass PHPBB it always makes be double post!

[fieromadman]

I too plan on doing this intake swap soon, I just need a few parts yet. One question that i had was whether or not the MAF is in the t-body neck, and if so can i use that one instead of the one that comes with the 94-95 setup or which one would be better?

[SappySE107]

I have tuned oldskools, though we really need to dyno tune it. I know well enough that the 96 top end wants more fuel at the higher RPMs than what I program for the stock plenums. I certainly wouldn't mind you buying a chip:P haha, but yeah, i can and would definetly tune your setup when you have it completed, whichever heads (or even retune with the 96 heads).

The MAF is before the TB on both setups. I am not sure that there is a difference between them but its probably a good idea to use the MAF that was meant for the computer you are using. 94-95 computer would be easy to adjust for the MAF either way and for that intake setup. Im pretty comfortable with both computers now

[Jakemetz63]

When I bought my 97 engine, it didnt have a TB so I just used the intake of my 94 to put it into my 94 Prix. Would I notice a gain by picking up a TB and swapping the 97 intake manifolds onto my engine? I might remember hearing that the 94 style flows better, but i might be on crack also.

[fieromadman]

seems to me that you are on crack, the 96-97 setup is far superior....

Thanks for answering the question Ben!

[SappySE107]

Im not convinced that the 96 intake is the way to go on most automatic cars. Unless you want to shift at higher RPM, its not going to be better around town. Higher RPM shifting also shortens the transmissions life. Im just guessing on it not being the best for an auto, but I know its great for a 5 speed.

[OldSkoolGP]

I'll drink to that. On anautomatic, unless you have extensive head work done, you won't have any low end. My buddy's 96 GTP was textbook of this. No power down low till about 3800 them it threw you back from there. aDn because the automatic just like to shift too soon, it's not the best solution. I think a 91-95 would be much better for automatics. My old setup with all my head work had one, and MASSIVE low end. Just flooring it at 2000 RPM in first lit up both tires. But I would still rather have the 96 intake setup because of the top end and the ability to change TBs.

[Kohburn]

or if you have a manual tranny you can do something like what I'm almost finished working on