general23cmp

iTrader: (1)

Anyone actually tried this (4.125" bore X 4.25" stroke). If so, what machine work of the block was required for clearances (rods, camshaft, etc.)? Also, what are some of the important things to watch for in attempting this? Why do most people shoot for the 427...the 454 is possible isn't it?

USMC Devil Dog

Isn't MTI working with a 442 6.0L?

redline2k

iTrader: (9)

There was an article in one of the magizines about a ls based 454. It had a custom crank made by hank the crank.

kumar75150

u could do a 4.200 bore and a 4.125 stroke = 457

Cartek has it on their website. I dont think they have done one yet though.

jrp

iTrader: (16)

you can contact MTI and see if they'll give you the information from there 455ci setup

https://ls1tech.com/forums/showthrea...&highlight=455

Quickin

When my 436 was built the only thing that was a guarantee with it was oil burning. It burns more oil than normal. I spoke with 4 other 436ci owners and they all burn oil. It has to do with the stroke and the ring set used, according to what all the top shops have told me. They also said that a 427 doesn't have that problem and the power is only a tiny bit less.

So a 454 will just be worse off.

I burn about 1 quart every 800 miles now. But its worth the power

ssheets

iTrader: (1)

427

kumar75150

thats true to some extent but your issues were mainly cause you had ARE build it

there are people with 447s w/o issues

kumar75150

do a 434 w/ 4.155 bore and 4 stroke

slow67

iTrader: (2)

that article used a c5r block

INVISIBLEZ

iTrader: (45)

G-Force has a 454 LS1 in their Impala, talk to Mike Texas SS, he'll let you know any issues you face.