Forum thoughts ?
Pro
Joined: Jun 2012
Posts: 633
Likes: 0
From: Van Buren Arkansas
A buddy of mine from my hometown has an LSX 454 in his 05 GTO. Made 580 rwhp with 1 3/4 headers and believe he hit 600rwhp with 1 7/8. The thing pulls like a freight train. Don't like the idea of putting an iron block in in place of aluminum, but it can't be any difference weight wise than doing a pro charger right??
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Safety Car
Joined: Nov 2013
Posts: 3,546
Likes: 1,092
From: Ex DPRK, now just N of Medford, OR
Sweeeeeet! I'd pass because of the extra weight (60lbs?), but in the context of a 3200 lb car... Move the battery into the back and the weight distribution stays the same. Currently piecing together a 4.125" stroker/LS7 block. Had all the parts ready for balance and found they sent me a 4.100 crank instead. Stupid ebay!
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Race Director
Joined: Dec 2006
Posts: 12,202
Likes: 2,810
From: Fort Worth, Texas
Are you having a GM dealership install it? I would think it'd be hard to get a performance part warrantied with all the fine print and when bad tuning can ultimately kill any engine, as nothing is bullet proof...
http://www.crateenginedepot.com/Webp...?WebpageId=199
http://www.crateenginedepot.com/Webp...?WebpageId=199
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 290
From: Pasco WA
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
A buddy of mine from my hometown has an LSX 454 in his 05 GTO. Made 580 rwhp with 1 3/4 headers and believe he hit 600rwhp with 1 7/8. The thing pulls like a freight train. Don't like the idea of putting an iron block in in place of aluminum, but it can't be any difference weight wise than doing a pro charger right??
And can be turned up with just a pulley change and tune, try that with a N/A engine.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 290
From: Pasco WA
Drifting
Joined: Apr 2003
Posts: 1,387
Likes: 10
From: Jacksonville FL
I went with a 440 based on an LS7 block. It made 600 RWHP off the bottle and has been rock solid since 2007.
On occasion when that isn't enough it makes a little over 800 on the bottle.
There are better ways to keep the front end down than adding weight.
On occasion when that isn't enough it makes a little over 800 on the bottle.
There are better ways to keep the front end down than adding weight.
Pro
Joined: Sep 2013
Posts: 581
Likes: 9
From: CA
I have an LSX 454 in my 99 vert thats puts down 635 rwhp on 91. The car has been lowered and with grippy 295 Toyos up front I can turn on a dime. I notice no penalty with the added weight of the iron block. The car handles great and with Eradispeed cross drilled and slotted rotors stopping is no problem.
I have a rowdy setup, but I never intended this to be a DD. The 454 provides a singular experience. The next step is going to be an E85 tune. I imagine I'll be close to 700 rwhp then.
I have a rowdy setup, but I never intended this to be a DD. The 454 provides a singular experience. The next step is going to be an E85 tune. I imagine I'll be close to 700 rwhp then.