what years where turbo 350 trans used?
what is first gear ratio of the 350 if it was used?
what years had the best heads?
what years and motors had the best cam? (highest rpm & HP)
what years had the best suspension for cornering?
what is the best way to get 60 MPH in first gear using all stock parts ???
thanks!!!!

 

Too many "What year" questions??????

 

1. None.
2. Not used.
3. 87-92 350 TPI's.
4. 87-92 350 TPI's and 305 5-Speed G92 cars.
5. 85-90 IROC-Z28's.
6. -------------------

 

2.52 th350 first gear
1.52 second direct 1 to 1 in third

B&M makes bracket you need to connect torque arm to the tranny, its simple and easy to install no fabrication needed at all, just three tailshaft bolts to remove and reinstall, and the bolts for torque arm bar mount cushions and shell.

simple, i just swapped to th350 from thm200C it out in my driveway the other day


avoid alot of the 882 heads and the 624 heads too, both light crack prone castings, both are 350 and 400 heads, not 305 or 307 or 327 heads. 882 started in 74 and its the 74 ones that tend to be the cracking one, and the 624 were about 79 and up all through 80s common and junk.

 

Also the 85 305 TPI came with the vette cam.

 

sorry about all the 'what years'.... anybody know specs. on the good cams... lift ,duration, lob to lob angles???
and if all those other heads are weak which ones are the good ones???
thanks :-)

 

It will save you some time, just look up the Tech Data on the Home page of this site. Thats were most of the info is coming from.

 

The L69 (305 HO 4bbl) had the best heads of all the 305s. They were 58cc chambers with 1.84 intake / 1.5 exhaust valves. On that engine, it made 9.5:1 compression.

The casting number was 416 i beleive.

 

Those are the same heads as some of the LG4's used. My 82 LU5 has the 416's, just like my 83 LG4 TA I use dto have. Sme casting number, valve size and everything.