illenema

Lord A 450 CI lt5? Sound interesting to me, (too interesting)
Cant wait for our first build

zr-1 guy

i hope someone does it...but i'm not interested n doing it

illenema

Durability will be key.

SAM/CH ZR-1

I spoke recently with Mike from AES Racing. He think balancing the crank could be a challenge by a 450 displacement.
When a solution can be found, why not to try even a 454 LT5?

Sam

cvette98pacecar

The Stroke is the same that is in the "427" 4.00" stroke by 4.125" bore.
The "441" are 4.125" stroke by 4.125" bore.
The "454" is once again a 4.00" stroke but the bore is huge at 4.250"

I am guessing Reynolds wrap will not make any aluminum foil that thick for the Siamese sleeves.

Pete, Mark, Bob G anyone's thoughts? Is there enough material to sustain that big of a bore in the LT5 without cementing the block?

Polo-1

they have 4.165 bore why not just use 4.130 stroke. 450ci done. If you want big cube #'s.

cvette98pacecar

If I hit the lotto for 60 million will give it a shot both ways. 450 cu in and the 454 cu in.

Heck it not like a need longevity. 3000 miles would last me a life time at 8 miles a weekend. 6 or 7 times a year.

illenema

Heck ya. Hope someone builds one.

FU

Too much stroke = too much side loading. Reduced durability and a larger H/P loss.
If I had to do it over again , 380-402 is where I'd go. "Econo" stroker crank and big bore. Concentrate on the breathing side , porting/cam combo. is where the H/P is made.
IMO FWIW.

Rkreigh

the 390 has enough stroke, I would like the bigger bore of the AES liners and have pete work his magic on the heads and cam timing

FU

AES closed deck O ring grooved to handle increased cylinder pressure for
NO2 boost etc.

DDSLT5

Pete is willing and able - where's your $$$????

DDSLT5

Everything from the lips of FU is GOLD BABY!!!!! WORTH ITS WEIGHT IN GOLD!!!!!!

FU

Hey Doc. Pete has a 4 bolt engine.............................

DDSLT5

Uh oh!

SAM/CH ZR-1

With a 4.165 bore and 4.165 stroke it would have a 454 displacement.
This configuration keep my mind since over 1 year busy. I also spoke with Pete about this idea.
As told before I wouldn't mind to build such a engine when in the block is enough space for the big stroke and the crank can be balanced. The additional question is how to feed the huge cylinders with enough natural aspirated air? Maybe to go with 252 degree inlet cams and keep the secondaries in for better idling but with 40 mm butterflies?
I have in my garage a set of LT5 heads with 40.6 mm inlet and 37 mm outlet valves and bigger valve seats and very big ports.

Rkreigh

mr m t pockets right now. selling 3 cars, so hopefully that will be a good start!!

Rkreigh

bringing back a very old but timely thread the lsv needs new liners. and the current pistons certainly look good which makes a 4.00 liner a good choice

on the other hand, the closed deck liners are superior and would prepare for a boosted application down the road. hmmmm......

thoughts from those that went down this road? are you all using JE or diamond pistons?

I think my stroke is 3.875, and so I need to measure the rod length and see what piston I might need

one thing for sure, I miss the lsv, it's like lt5 wot withdrawl. Anyone need a ZR-1 or vette transported to carlisle? I pay the gas.

Goldcylon

Life is to short to Daily Drive a Hyundai.....

Rkreigh

hi sam

Frankie did a big 441 and I think the big bore and less stroke combo would make almost as much zots and live to tell about it

the idea of a 427 has a certain appeal

I'm curious how well the big liner motors are lasting. the sad truth is there is scant data on strokers

I just pulled apart the LSV and was pleased to see minimal wear after about 86k o hard miles

would have lived much longer but I popped a HG due to MANY heat cycles around 240 and a popped rad hose that "did it in"

the HG was likely leaking for a while and I was "blaming" the samco hoses

bottom of liner # 6 had a weird wear mark, pistons look good, but it's time for new liners

the big liners look great but I'm afraid they are faster than my $