I have had my 3rz swapped 84 stubby running for bout 2 weeks. Maybe a little more. Bought a M. C vehicle speed sensor and it has worked out great. Am running with no cat and no bank 1 2nd sensor. No codes from that setup. I know if I put a 2nd sensor in it will set a catalyst efficiency code. Live data does see hearted circuit open for that sensor position. At the time of completetion I used a 98 taco pacesetter which rubs the p side frame rail. I will go to a 2000 4runner 3rz exhaust setup next week. Turned out my taco did have w59 which I borrowed the bell from. T100 2wd oil pan went on fine. Nice baffling in that. Toyota F.I.P.G. is good stuff. Taco harness worked out good an uses the same number of wires t o and from the key switch as my 84 carbed. I have encountered misfire code on 2nd cylinder and have changed wires. I think one of the 2 exhaust valvesmay be leaky. I found a new head casting guts and cams setup on engine monster with 3 year parts wwarranty for 5 ana quarter. National head has 3rz rebuilt head for 320 something. However not all the internals are new. Has anybody seen these listings. Tough to believe they can do this stuff this cheap. I know if I pull the head it will cost at least that much locally and he,d probably only replace what was worn an do a valve job. I also found heads online for 900 an up. Input anybody?
