Building a Stroker LQ1

[joelbob]

I now have the transaxle I will be using behind my LQ. - It's one of the many surplus "4DFF" NVG T550 units (same as HM282 but made by New Venture) that were floating around a while back. It has the lower ratio final drive along with a slightly lower gearset. Here are the specs: 1st:3.77, 2nd:2.19, 3rd:1.38, 4th:1.06, 5th:0.80, FDR:3.94. With stock diameter '96 Z-24 (J-body) tires, this will yield 2,800rpm @ 60mph. These all have the Quad case (starter at 1 o'clock) with hydraulic TOB so I will be swaping out an older 60degree case half with external slave. If you'd like, I can post some pictures.

My source has about six more of these transaxles. - I am thinking about buying another for a backup. If anyone here is within driving distance of me and wants one, pm me. Maybe we can save some $$ on freight.

[Supraboy]

i was thinking of this same thing when i logged onto the forum yesterday. This may be a dumb question but why the 3500 crank?

[pocket-rocket]

Forged steel.

[IsaacHayes]

Plus if you offset grind it down to stock 2.0" diameter of the 3.4 DOHC rods, you can gain stroke..

[Supraboy]

oh, ok. makes sense. I am definately subscribed to this thread.

[SappySE107]

You might want to post in the buy/sell/trade section regarding the transmissions.

[01GPGT]

interesting build i like intersting

[joelbob]

It's been a few days since I've made a post. I haven't made any project-related purchases since receiving the transaxle I mentioned in my last post. It's frustrating to have something so cool to work on and not be able to. Priorities suck! I have a (14k pound) monkey to get off my back before I can start the build. - This is a little off topic but since it's keeping me from working on my LQ build, it's related indirectly........Well, not really. Since I'm thinking about my LQ build while working on it, I thought I might post some pics. (Does that make it officially off topic?) It's an M35A2C that I am prepping for sale. - It's one of those projects where one thing leads to another and, before you know it, you're a__ deep in alligators. After replacing inner and outer rockers on both sides, I am starting to see the light of day.

[pocket-rocket]

That thing is a beast! You could use that for one heck of a car hauler to the track

[no_doz]

out of curiosity can someone tell me what degree LQ1 valves are in comparison to eachother?

if you dont understand what i mean, i mean if one went from the top of a perfectly flat piston to the center pint in between the valves-what angle would they be?

[joelbob]

no doz, I'll have to check that one out. I don't have my heads disassembled right now. - I do have one of them off. Maybe I can stack some gauge blocks on the head of a valve and try to capture the angle with a vernier protractor while holding it perpendicular to the bore centerline. If I can, that would give accuracy within 5 minutes (1/12 degree), assuming the seat & guides don't have excessive wear.

[SappySE107]

I have a head cut up but no serious way of measuring the angles. A protractor is the best I have.

[bszopi]

I'll try loading that into AutoCAD this weekend and drawing some lines to see if I can come up with an angle. Should be able to be relatively accurate.

[robertisaar]

weekend? hell i'll do it now...

left side i came up with 10.46038*
right side i came up with 11.60889*

take it for what its worth...

[no_doz]

brad i gotta tell ya-that picture is gorgeous. from what i can tell its a 155* separation angle-anyone else care to confirm or correct?

also if the left side is the intake port, is that huge lump of material able to be removed for the most part? seems like a good bit of flow could be gained by removing that alone.