can I switch my 1996 k1500 305 motor and tranny for a 350

Asked by May 22, 2015 at 10:33 PM about the 1996 Chevrolet C/K 1500 Silverado Standard Cab SB

Question type: Car Customization

I bought a 96 k1500 4x4 with a bad tranny and now the head gasket went, I don't feel like repairing it has 230000 but I cant find a decent 305. I found a 97 with a rotted frame but motor and tranny have 127000. I wanted to know if I do change over will I need to change the harness and the computer

10 Answers

78,375

To make sure everything will work you will have to do that.

1 out of 1 people think this is helpful.
16,255

It's all the same. If it's a 350 go ahead and take the computer so it's programmed for one.

1 out of 1 people think this is helpful.
1,435

All Chevy bolt patterns are the same. Different engines & transmitions bolt togeather, & most use the same motor mounts too. Use everything that goes with 97' engine too. 350 for a 305 is a good choice.

1 out of 1 people think this is helpful.
19,235

5.0 and 5.7 used the same ECM The 5.0 pcm will not lean out the 5.7 engine at all. the 02 sensors will correct the fuel mixture and you will not have any trouble with running what you have already. The only reasone you would need to make any mods to the pcm or the wire harnss would be if you where going from a 4.3 to a 5.7.

1 out of 1 people think this is helpful.
16,255

Your telling me a pcm programmed to an engine flowing 305 ci worth of displacement that uses a MAF sensor isn't going to tell a difference in another 45 ci of displacement? The maf reading alone will be different, the fuel trim tables will be too lean. It will run, no doubt about that but it won't be right.

1 out of 1 people think this is helpful.
19,235

yep. gm says there both in the same parametersFYI... several GM trucks use the same 16197427 ECM for 5.0 and 5.7 just change out the chip if you want.. CHEVROLET ASTRO (1994 - 1995) CHEVROLET BLAZER (1994 - 1995) CHEVROLET C1500 PICKUP (1994 - 1995) CHEVROLET C2500 PICKUP (1994 - 1995) CHEVROLET C2500 SUBURBAN (1994 - 1995) CHEVROLET C3500 PICKUP (1994 - 1995) CHEVROLET EXPRESS 1500 1996 CHEVROLET EXPRESS 2500 1996 CHEVROLET G10 (1994 - 1995) CHEVROLET G20 (1994 - 1995) CHEVROLET G30 (1994 - 1996) CHEVROLET K1500 PICKUP (1994 - 1995) CHEVROLET K1500 SUBURBAN 1995 CHEVROLET K2500 PICKUP (1994 - 1995) CHEVROLET K3500 PICKUP (1994 - 1995) CHEVROLET P30 (1995 - 1997) CHEVROLET S10 BLAZER (1993 - 1994) CHEVROLET S10 PICKUP (1993 - 1995) CHEVROLET TAHOE 1995 GMC C1500 PICKUP (1994 - 1995) GMC C1500 SUBURBAN (1994 - 1995) GMC C2500 PICKUP (1994 - 1995) GMC C2500 SUBURBAN (1994 - 1995) GMC C3500 PICKUP (1994 - 1995) GMC G1500 (1994 - 1995) GMC G2500 (1994 - 1995) GMC G3500 (1994 - 1996) GMC JIMMY (1993 - 1995) GMC K1500 PICKUP (1994 - 1995) GMC K2500 PICKUP (1994 - 1995) GMC K2500 SUBURBAN (1994 - 1995) GMC K3500 (1994 - 1995) GMC P3500 (1995 - 1997) GMC SAFARI (1994 - 1995) GMC SONOMA (1993 - 1995) GMC YUKON (1994 - 1995).

Can I put a 1995 Tahoe motor in my 1990chevy k1500?

16,255

Yes

Is the wiring harness the?

16,255

Yes, as long as they are the same engine size you'll be good. Going v6 to v8 would be alittle more involved. And switching from a 305 to 350 will be plug and play but I would advise the appropriate pcm to go with the motor

Your Answer

Add photo

Related Questions

C/K 1500

Looking for a Used C/K 1500 in your area?

CarGurus has 1,058 nationwide C/K 1500 listings starting at $1,999.

ZIP:

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,780
#2 John Saffrahn
John Saffrahn
Reputation 2,340
#3 Rowefast
Rowefast
Reputation 1,190
View All

Related Models For Sale

Used GMC Sierra 1500
1,174 Great Deals out of 58,309 listings starting at $2,495
Used Ford F-150
3,443 Great Deals out of 206,231 listings starting at $1,273
Used Chevrolet C/K 2500
261 listings starting at $3,900
Used Dodge Ram 1500
549 Great Deals out of 13,019 listings starting at $1,800
Used Chevrolet Tahoe
1,102 Great Deals out of 31,960 listings starting at $1,495
Used Toyota Tacoma
799 Great Deals out of 33,979 listings starting at $2,499
Used Chevrolet C/K 3500
260 listings starting at $2,995
Used Chevrolet S-10
10 Great Deals out of 1,632 listings starting at $995