LT5 Engine info

Author
Discussion

Nifty

Original Poster:

33 posts

223 months

Monday 27th October 2008
quotequote all
Can anyone supply me with the physical dimensions and the weight for the LT5 engine (as fitted to the original ZR1 Corvette (was it a C4?)?

I'm thinking of trying to purchase one for a mid engine installation.
(I've heard of them used in Ultima's, does anyone know what transaxle they mate them to?)

And the last question .... I would imagine I would need to purchase from the USA .. what could I expect to pay for one?

Thank you in advance,

Nifty.



franv8

2,212 posts

244 months

Monday 27th October 2008
quotequote all
See (currently) two posts down about LT5 Zr1 repairs - but the people you want for an answer are Gixer, and Cliff, the latter I think has some LT5 bits that may help.

Yes - it was fitted (only) to the C4 ZR1, 1990 to 95 I think (sure about beginning, might be a year out either way on the end of the run), normal C4's had first or second generation small blocks.

Gixer

4,463 posts

254 months

Monday 27th October 2008
quotequote all
franv8 said:
See (currently) two posts down about LT5 Zr1 repairs - but the people you want for an answer are Gixer, and Cliff, the latter I think has some LT5 bits that may help.

Yes - it was fitted (only) to the C4 ZR1, 1990 to 95 I think (sure about beginning, might be a year out either way on the end of the run), normal C4's had first or second generation small blocks.
..and to a works Lotus Elise!!

mitch_

1,282 posts

230 months

Monday 27th October 2008
quotequote all
Given the rarity of LT5's and their complexity over modern LS engines, I would have thought using an LT5 was more trouble than it was worth??

ZR1cliff

17,999 posts

255 months

Monday 27th October 2008
quotequote all
mitch_ said:
Given the rarity of LT5's and their complexity over modern LS engines, I would have thought using an LT5 was more trouble than it was worth??
To be honest you are right, but it's not so much the complexity - it's also parts availability and expense. Unless you have an LT5 fitted already, I've heard the argument - why use an LT5 when the newer engines are less complexed and more affordable to obtain power from. Not forgetting the LT5 is now an 80's design, having said that it's one main advantage is it's a very pleasing engine to look at with it's 4 cam valve covers and intake system.

Edited by ZR1cliff on Monday 27th October 11:36

ZR1cliff

17,999 posts

255 months

Monday 27th October 2008
quotequote all
Here are a couple of my LT5 when I was rebuilding the top-end.




franv8

2,212 posts

244 months

Monday 27th October 2008
quotequote all
CLiff, I wish you hadn't put those pics in. Makes me feel a bit funny...

mitch_

1,282 posts

230 months

Monday 27th October 2008
quotequote all
Surely you'd struggle to find an LT5 to buy now?

ZR1cliff

17,999 posts

255 months

Monday 27th October 2008
quotequote all
franv8 said:
CLiff, I wish you hadn't put those pics in. Makes me feel a bit funny...
Nothing like a bit of LT5 porn biggrin

ZR1cliff

17,999 posts

255 months

Monday 27th October 2008
quotequote all
mitch_ said:
Surely you'd struggle to find an LT5 to buy now?
You can still buy them if you are willing to ship a full engine in from the U.S, but with so many more affordable and plentiful other engines on the market is it worth it for a new build ?

Note; not trying to put the OP off, just being realistic.

Gixer

4,463 posts

254 months

Monday 27th October 2008
quotequote all
mitch_ said:
Given the rarity of LT5's and their complexity over modern LS engines, I would have thought using an LT5 was more trouble than it was worth??
But they look so much better and nothing sounds the same as an LT5 right up on the cams at 7500. I'm guessing an LS is a common engine choice in those cars. Maybe he wants to have something a bit different. Be room for turbos on that kind of install as well;)

BTW Cliff, gaskets arrived this morning

Here's a 1940's custom pick up, note the lack of plastic engine covers -


Edited by Gixer on Monday 27th October 12:44


Edited by Gixer on Monday 27th October 12:45

ringram

14,700 posts

254 months

Monday 27th October 2008
quotequote all
LT5 would be far more expensive than an LSx engine, probably heavier too.
Why bother?

ZR1cliff

17,999 posts

255 months

Monday 27th October 2008
quotequote all
Gixer said:
BTW Cliff, gaskets arrived this morning
Excellent, money's on the side.

Gixer

4,463 posts

254 months

Monday 27th October 2008
quotequote all
For the above reasons. Nifty I have the physical dimensions and the weight somewhere from when I removed mine and shipped it to the states. I'll have a dig around and see if I can find them

Poledriver

28,763 posts

200 months

Monday 27th October 2008
quotequote all
Gixer said:
mitch_ said:
Given the rarity of LT5's and their complexity over modern LS engines, I would have thought using an LT5 was more trouble than it was worth??
But they look so much better and nothing sounds the same as an LT5 right up on the cams at 7500. I'm guessing an LS is a common engine choice in those cars. Maybe he wants to have something a bit different. Be room for turbos on that kind of install as well;)

BTW Cliff, gaskets arrived this morning

Here's a 1940's custom pick up, note the lack of plastic engine covers -


Edited by Gixer on Monday 27th October 12:44


Edited by Gixer on Monday 27th October 12:45
VERY tidy installation! thumbup

Gixer

4,463 posts

254 months

Monday 27th October 2008
quotequote all
ZR1cliff said:
Gixer said:
BTW Cliff, gaskets arrived this morning
Excellent, money's on the side.
no probs mate. BTW they are black

franv8

2,212 posts

244 months

Monday 27th October 2008
quotequote all
Oh dear, I'm feeling funny again!

What was the chaps name, the one who dragged a ZR1 - who we sat on the same table with at the gathering?

ZR1cliff

17,999 posts

255 months

Monday 27th October 2008
quotequote all
Was it Mike from EES, if it is he's same guy that did all my top-end work.

Here he is running a 10 sec 1/4
http://www.youtube.com/watch?v=v1Kw7WVGdvA

EES
http://www.acsvette.com/

Edited by ZR1cliff on Monday 27th October 15:27

Boosted LS1

21,198 posts

266 months

Monday 27th October 2008
quotequote all
They do look nicer then any LS that I've ever seen. Look more like an engine if you know what I mean.

franv8

2,212 posts

244 months

Monday 27th October 2008
quotequote all
Found it - sorry Cliff - it was Mr Lane Goldstein

http://www.corvettevalley.com/showthread.php?t=445...

As he says, 900 naturally aspirated ponies! Monster monster...