engine swap

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engine swap

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Blazer >> Modifications >> Performance & Brainstorming >> Engine & Internal >> engine swap

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engine swap - 3/25/2007 9:15:43 PM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

hey i am new to the forum and i bought an 88 s10 blazer 2.8 5 spd and i want to put a 350 in it and i just wanted to know if anyone on here that has done this before would be able to tell me the best way to go about it and some of the problems that i might run into. or maybe if they know where i can get some information on it. let me know. thanks.

Post #: 1

RE: engine swap - 3/25/2007 9:40:21 PM

swartlkk

Posts: 14473
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

Best bet is to grab the book from JagsthatRun.com

One thing that you will run up against is having to put in a different transmission. The 2.8L v6 is a 60* 'V' and has a different transmission bolt pattern than the 90* 'V' engines (4.3L, 5.7L, etc).

_____________________________

Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to bigblaze85)

Post #: 2

RE: engine swap - 3/25/2007 9:45:38 PM

Blazin_Jason

Posts: 1067
Joined: 5/17/2006
From: Van Isl, B.C.
Status: online

There are 2 of us in the process right now. Mine was a 2.8 auto truck. Sticking with a 350 and 700r4.

_____________________________

85 S10 Blazer 4x4, 2 door, undergoing 350 swap, 3" BL, 33''''s

89 Jimmy 4x4, 2 door, 4.3/auto

(in reply to swartlkk)

Post #: 3

RE: engine swap - 3/25/2007 10:12:27 PM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

thanks guys i appreciate it, i am gunna grab that book up for sure, i figured i would need a different tranny i am just not sure what one i am gunna use, i think i am gunna keep it 5 spd. well let me know how it goes and keep me posted on the problems you run into and let me know of any other info you get. thanks again.

(in reply to bigblaze85)

Post #: 4

RE: engine swap - 3/25/2007 10:14:38 PM

Blazin_Jason

Posts: 1067
Joined: 5/17/2006
From: Van Isl, B.C.
Status: online

2wd or 4x4? Once you get the manual it will help a lot. There will still be problems but everyone uses different conversion parts so the problems maybe different.

_____________________________

85 S10 Blazer 4x4, 2 door, undergoing 350 swap, 3" BL, 33''''s

89 Jimmy 4x4, 2 door, 4.3/auto

(in reply to bigblaze85)

Post #: 5

RE: engine swap - 3/25/2007 10:26:51 PM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

its 2 wheel drive, i know that there is going to be problems either way, i just want to try and be prepared for some of the problems that other people have had.

(in reply to bigblaze85)

Post #: 6

RE: engine swap - 3/25/2007 10:31:08 PM

bigjsp

Posts: 77
Joined: 2/5/2007
Status: offline

mounts and headers combinations can get very specific. Read the header manufacturers requirements before selecting which mount kit.

You may be own your own as most kits are designed for automatics not standards.

I did mine building my own mounts, rear tranny mount and adaptor piece from the clutch pedal to a tilton master cylinder and then used a quartemaster hydraulic throw out bearing with a Richmond / Doug Nash 5 speed,

I started with Hooker long tubes, they were a pain as they wrapped around the frame, then I hand Sanderson shorties and they were OK accept the passenger side floor board required alot of clearancing. Currently running factory manifolds and all wire heat shields of a 92 buick wagon with a corporate motor, NO leaks for 4 years, but this is more of a tow vehicle motor than a high revver too.

(in reply to Blazin_Jason)

Post #: 7

RE: engine swap - 3/28/2007 5:23:31 PM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

would the tranny from my 2.8 fit on a 4.3 engine?

(in reply to bigjsp)

Post #: 8

RE: engine swap - 3/28/2007 6:29:50 PM

swartlkk

Posts: 14473
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

Nope. Bellhousing bolt pattern is different. The 2.8L is a 60* v6 while the 4.3L is a 90* v6. The 4.3L shares the bellhousing bolt pattern with the small blocks.

_____________________________

Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to bigblaze85)

Post #: 9

RE: engine swap - 4/8/2007 10:16:17 AM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

if i ordered the engine mounts and headers for the 350 swap would they fit on a 305, because i might be able to get my hands on a 305 for free.

(in reply to swartlkk)

Post #: 10

RE: engine swap - 4/10/2007 4:47:42 AM

lunatic_magnet

Posts: 202
Joined: 6/26/2006
From: sideways in turn 4
Status: offline

yes, the 305 and 350 have the same outside dimensions.

(in reply to bigblaze85)

Post #: 11

RE: engine swap - 4/11/2007 3:06:03 PM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

cool, thanks man

(in reply to lunatic_magnet)

Post #: 12

RE: engine swap - 5/20/2007 4:07:36 PM

bigblaze85

Posts: 9
Joined: 3/25/2007
Status: offline

does anyone know if when i swap then engine if i need to change the driveshaft and if so what driveshaft will work?

(in reply to bigblaze85)

Post #: 13

RE: engine swap - 5/21/2007 11:35:19 AM

mojoman13

Posts: 221
Joined: 8/21/2006
Status: offline

i will tell u in a bit
installing my 350 this up coming weekend and ill tell ya what needs to be done to fit er in there

(in reply to bigblaze85)

Post #: 14

RE: engine swap - 5/21/2007 12:55:10 PM

Blazin_Jason

Posts: 1067
Joined: 5/17/2006
From: Van Isl, B.C.
Status: online

Well depending on how you mount the engine, what trans you run will depend if you need to mod the driveshafts. I put my engine and tranny in so that the tranny was in the stock location. So I will be able to run the stock driveshafts (4x4). Usually with a 2wd people shorten the shaft as they set the engine back.

_____________________________

85 S10 Blazer 4x4, 2 door, undergoing 350 swap, 3" BL, 33''''s

89 Jimmy 4x4, 2 door, 4.3/auto

(in reply to mojoman13)

Post #: 15