just bought one..............dont know yet if its a 2 bolt or 4 bolt.....
where can i find info and specs about this motor?

i would like to use this with TPI in my V6 camaro..........i'm not asking how to do the swap. i have a good enough idea...........

what i do want to know is if the TPI will work on the motor with a stock 350 TPI prom...............

also what are differences between truck and car motors?

thanx

 

The main differences between truck and car motors were compression, cam, and heads. Also, truck typically got 4-bolt, but by that time, 2-bolt was often used even in trucks. It will be a 4" bore, 3.48" stroke, two-piece rear main seal crank.

For decent performance with TPI, first dump the heads, cam, and pistons. Basically, you bought a block, crank and rods, so the rest of the specs aren't important. After the normal rebuild, fill it with flat-top pistons, computer-compatible cam, and top it with 64cc iron or 58cc aluminum heads. I'd recommend what heads to put on, but people would accuse me of having stock in World Products (which I don't).

 

well, i knew the bore, stroke, and 2 piece RMS facts...........

i assume they got a cam and heads for more low end torque.......................

how poor of a design are the pistons?

i was planning on redoing the top-end, but didnt really want to jump into working on the bottom end just yet...................i'm not really looking for ***** to the wall power from the get go.......................once i get the TH350 into the Z28, i wanna swap the 350 with a TPI setup into the RS............would the cam it has mess with the ECM, or would they get along as is?.................again, i just want to get the car running with the motor as a starting point.................

 

Sorry, I assumed you assumed a rebuild was in order.

The pistons are dished, that's all. With 64cc heads, you'll get around 9.0:1. With 305 heads, closer to 9.5:1.

Any idea what condition this thing is in? 25 years old doesn't instill a lot of compression confidence. If it's been rebuilt, then it may have flat tops (more likely still dished, though).

The torque part is mostly correct. Better flowing heads and aftermarket cams will produce more torque than the factory package did. But, it should run okay if you just bolt it in and run it as-is, ECM and all.

 

There's no difference in the heads or the cam from a car motor. It'll have a 929 cam and 882 heads. Garbage of the lowest order in both cases. Trucks in those years got the same pistons as cars too, dished smog crap to go with the smog turd heads and cam. It is your duty as a speed-loving American to be certain that they are melted down and recycled as soon as possible to protect the rest of the world from them.

Like five7 said, for all practical purposes you have a block, a crank (cast, 442 casting most likely), and some rods (probably "O" rods). Every single other piece is anti-performance, and will defeat any attempt at improvement.

 

He'd be reffering to me.

World heads are a good head, that I'm sure. But anytime anyone anywhere wanted to talk about Vortec heads, or AFR, or TFS, or whatever, all five7kid would shout out is "WORLD"!!! LOL

For the $$$ they're a good head. They have good flow characteristics, take a pocket porting well, and hey.. they're iron , but they don't fit everyone's application all the time.

I was just givin' five7kid some crap one day and I guess he took it too seriously. For less then $700 and a 'true' bolt on (which the Vortecs really aren't) I'd say go for World also. Just make sure they're gonna keep up with future mods you plan on doing. Heads, IMO, are what make a good engine great.

AJ

 

well, it has 80,000 original miles on it, i was told it was in perfect running shape when pulled......no smoke, no knock, no valve tap.................i paid $300 for the engine and TH350 tranny in a package deal on ebay.........i figured some people want $300 for a TH350 alone.........so even if i do need to rebuild the engine, its still a good deal

if anybody thinks i'm fibbing i'll include the link to the ebay auction

oh yeah, i found the power specs on the motor last nite, 175HP and 275 ft. lbs. not that bad compared to other engines in the 70's i agree that there is room for improvement.................but if i slap a set of better heads and a cam in, how much will those pistons screw me up? i mean, i can always get the heads milled a little bit for more compression......

 

No, we aren't doubting your word. It's just a "buyer beware" thing.

Like I said, smaller chamber heads (I said 305, specifically) would work with dished pistons. If I do go 350 in the Camaro some day, I intend to put my worked-over heads on just such an engine. Or, you can mill 64cc 350 heads down to 60 cc or so. But, that wouldn't be worth it to do to the truck heads.

 

i have a set of LG4 heads in my garage that need to be rebuilt

AND......i have head/engine rebuilding in school this semester!

as for the buyer beware.......i completely understand that..........if the engines a POS.....time for a rebuild...........i paid only $150 for it so.................thats a decent price for a core