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Thread: 408 stroker build
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09-27-2010, 08:32 AM #1
- Join Date
- Sep 2010
- Location
- texas
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- 31
black- 01 ss m6
408 stroker build
my buddy is doing a 408 stroker build here soon. he wants N/A engine car to put down about 550 rwhp. has anybody did a 408 stroker N/A and whats the max amount of horsepower anybody has got within a reasonable car. right now he is looking at a vengeance racing ls2 408 stroker and trying to get as close to one of their builds as he can, his own way. he is looking at the TSP cam and some trick flow 215cc heads and the lsxr 102 intake manifold. i think the heads are gonna be too small for what he wants. he wants to run pacesetter LT's, and tsp x-pipe and random tech mufflers also. anybody have anything to add or tell him something different to do to get his goal. he wants to drive this car a couple times a week and stay on pump gas also
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10-05-2010, 06:28 PM #2
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- Aug 2009
- Location
- Houston
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- 35
Red- 98 C5
You want big numbers you need big heads. L92's with a little work should get you there.Is car M6 or A4. Its hard to put down big numbers in an auto.
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10-05-2010, 10:50 PM #3
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- Aug 2005
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- Thornton, CO
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- 23,773
Red Tint Jewelcoat- 2008 Trailblazer SS
LS2 408??
Time for a little more research.
Average 402/408 makes 475-520RWHP. Killer powerband though.
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10-06-2010, 03:26 AM #4
Heads are gonna choke it up a bit....if he's dumping $$ on a FAST 102 why not have Tony Mamo hog out a big set of AFRs.
'02 ws6.....mods? nope
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10-06-2010, 05:48 PM #5
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10-06-2010, 06:02 PM #6
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10-06-2010, 06:07 PM #7
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10-06-2010, 06:22 PM #8
- Join Date
- Feb 2010
- Location
- Greenwood, IN
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- 3,508
Light Pewter Metallic- 2001 Camaro SS
welcome to ls1.com
my buddy did an LQ9 build last winter and is putting 490 to the ground with the LS6 intake. don't know the specs of the cam or heads. i just know they are trick flow heads. kooks 1-7/8 long tubes and cat-less Y with Corsa exhaust. Stage 2 internals for his M6 tranny with a strange 60 rear end. all new suspension. Had the engine built by AES out of Chicago and this was not a cheap build what so ever. car preforms like a beast.2012 Regal GS
2004 Cadillac CTS-V (Sold)
2001 Camaro SS (Sold)
1999 Camaro Z28 (Sold)
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10-09-2010, 03:18 PM #9
Have a set of AFR 225s on my stoker. No numbers yet tho.
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10-09-2010, 06:45 PM #10
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10-09-2010, 08:26 PM #11
- Join Date
- Aug 2009
- Location
- texas
- Posts
- 6
What cam are you looking at for you 408?
I just started assembling the rotating assembly on a LQ9 block 418 and still have not decided on a cam. I am shooting for 550ish rwhp also.
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10-10-2010, 01:06 AM #12
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- Sep 2010
- Location
- texas
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- 31
black- 01 ss m6
its a m6. he doesnt know what cam either.. he just knows where he wants to get and has the money to do it. thanks for all the tips. so youre saying he definately needs good heads like the AFR 225's? and on the 402/408 thing, some on youtube say 408 some say 402... i dont really care what it is. i just know he wants to be above 500 rwhp and over 400 cubes. i just need more info on what yall are making. good info so far though. keep it going. we are both in iraq and are both building killer ls's when we get back.
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10-10-2010, 05:42 AM #13
- Join Date
- Sep 2010
- Location
- texas
- Posts
- 31
black- 01 ss m6
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10-10-2010, 07:37 PM #14
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10-10-2010, 09:41 PM #15
Just ordered the rotating assembly for mine. Also looking for 500rwhp plus 250 shot of squeeze for those special times.
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10-10-2010, 11:20 PM #16
I would def go with a lq9 block if I was him imo, cause if he ever decides to boost it will be more reliable since it is a cast iron, instead of a sleeved aluminum block.
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10-11-2010, 05:55 AM #17
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10-11-2010, 08:28 AM #18
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10-11-2010, 08:32 AM #19
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10-11-2010, 08:45 AM #20
well the problem with mine was that the pistons i had were to low like 8.5:1 to prolly went to 62cc to raise it lil bit. what intake manifold to you have. ive been trying to find something that will flow really well with those heads
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