What engine

Author
Discussion

sundown

Original Poster:

36 posts

119 months

Tuesday 18th October 2016
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Just got a kit car with a 5.7 engine in it can some one tell me if it is a ls1 or ls2 the engine numbers are 3970010 k1025drb 195163677

MrNoisy

530 posts

148 months

Tuesday 18th October 2016
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LS2 is a 6.0.

LS1 and LS6 were 5.7 (amongst others i'm sure)

KevinCamaroSS

12,295 posts

287 months

Wednesday 19th October 2016
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LS1 is 5.7, LS2 is 6.2. I had a 2005 C6 Corvette with LS2 (6 litre), and now have a Camaro SS auto with 6.2L L99, manual version is LS3 also 6.2 litre.

shovelheadrob

1,564 posts

178 months

Wednesday 19th October 2016
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Try to post a pic, is it even a Chevy engine, all the manufacturers have made 350 cube (5.7) motors.

Total loss

2,138 posts

234 months

Monday 24th October 2016
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It's an older 1979 350 cu. in. (5.7 ltr.) small block Chevy, not a LS engine
built on the 25th Oct 1978 at the McKinnion plant, Canada as a 170BHP 4 barrel with auto g/box,

Edited to correct build date to 1978

P.S. I should have mentioned it is a 1979 engine, as production + sales of 1979 vehicles would have started in August '78, as all MY (model years) from all American manufacturers always start in Aug. the preceding year.

Edited by Total loss on Thursday 27th October 00:05

sundown

Original Poster:

36 posts

119 months

Monday 24th October 2016
quotequote all
How do you know that

Total loss

2,138 posts

234 months

Wednesday 26th October 2016
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sundown said:
How do you know that
Most of the numbers & letters you posted up are coded to the info, so just looked it up.



Edited by Total loss on Thursday 27th October 00:07

300bhp/ton

41,030 posts

197 months

Tuesday 1st November 2016
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sundown said:
Just got a kit car with a 5.7 engine in it can some one tell me if it is a ls1 or ls2 the engine numbers are 3970010 k1025drb 195163677
I guess you could always post up a pic too. Although tbh there is no way of really knowing what internals it might have.

Chevy small blocks have been about for a long time. And many in the UK get confused and think everyone of them is a 5.7 and identical. But that isn't so.

I do find it odd that you'd buy a car and then try and figure out the engine in it. For me I'd want to know little things like that before handing any money over.

The LS1 was introduced in 1997 and shares no components with earlier SBC's.

Edited by 300bhp/ton on Tuesday 1st November 18:26

Crafty_

13,482 posts

207 months

Tuesday 1st November 2016
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If it has a distributor at the back and the middle 2 exhaust ports are next to each other its a Gen 1 (or possibly 2) small block. An LS has no distributor and the exhaust ports are evenly spaced.

If you have a distributor and even spaced exhaust ports its a big block of some description.

LS engine - note the evenly spaced ports and no distributor hole


Gen 1 small block - centre ports close together, distributor in rear


Big block, distributor in the rear, even spaced exhaust ports


If the distributor is in the front its probably a Ford of some sort or possibly mopar.

From the numbers you give I agree with the above, it sounds like a gen 1 small block to me.

Total loss

2,138 posts

234 months

Sunday 6th November 2016
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Crafty_ said:
If it has a distributor at the back and the middle 2 exhaust ports are next to each other its a Gen 1 (or possibly 2) small block. An LS has no distributor and the exhaust ports are evenly spaced.


From the numbers you give I agree with the above, it sounds like a gen 1 small block to me.
Sounds like ? It decodes as I gave info above. No other engine would have those codes/ casting numbers. If rebuilt it of course would hopefully have a lot more than the stock 170 bhp !

Crafty_

13,482 posts

207 months

Monday 7th November 2016
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The low output from that era of engine was due to all the crappy smog management stuff and (IIRC) naff heads.

You won't have all the smog gear, probably a half decent 4 barrel carb instead and the heads are easily changed if you want more power.

Broadly speaking, if its a 350 they are much the same.


LuS1fer

41,761 posts

252 months

Monday 7th November 2016
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Crafty_ said:
The low output from that era of engine was due to all the crappy smog management stuff and (IIRC) naff heads.

You won't have all the smog gear, probably a half decent 4 barrel carb instead and the heads are easily changed if you want more power.

Broadly speaking, if its a 350 they are much the same.
Low compression ratios too, so they can run on crappy fuel.