408 or 427?
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Teching In
Joined: Nov 2003
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From: MN
408 or 427? I'm asking for some input, I would like to have a stroker built for next year. The 427 I was looking at would be 6.0 iron block, Callies crank, Lunati pro-I rods, diamond pistons. The 408 I was looking at would be the Eagle crank and rods, and diamond pistons. I have stage 2 LS1 heads now, they flowed 285 at .600". I think I can get more out of my heads. Thinking of sending them to MTI or any other suggestions to have them gone through. Also any cam suggestions? Looking for shops that people have had good luck with.
Thanks
Thanks
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Originally Posted by GEAR M UP
427 all the way.....
) but the 427 has a great ring/history to it 
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TECH Fanatic
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From: Dallas
Originally Posted by PREDATOR-Z
And?????
1) the added stroke will cause oil consumption issues especially on an iron block
2) the 4.06 bore leaves the walls too thin on most iron blocks leading to a weaker block
11 & 7 Second Clubs
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From: Motorhome, Freeways, Truckstops, Pits
If it's a n/a motor, he could do 4.06 or maybe 4.08, but he hasn't told us where he's headed with this car; n/a, blown, nos, . . . I don't like the idea of a LQ4 427 stroker.
Thread Starter
Teching In
Joined: Nov 2003
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From: MN
My car is 90% street driven, I'd like to add a 150 shot of nitrous. I spoke with MTI yesterday and they said an iron 408 with Lunati crank and rods and wiseco pistons would be $5595.00 for the short block. I know that afr's or ls6 heads would be better but for now they said they would upgrade my heads to stage III's for around $800.00 and flow around 320-325 on intake. I thought about running there S1 cam (244/244-.612/.612 at 112 lsa) and then put a fast intake on with 90mm tb or TPIS modified ls6 intake with oval. I would think this should make pretty good power. Any thoughts or inputs? Thanks
TECH Fanatic
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From: Dallas
u can get a callies setup for under 5000 if you dont like Eagle
I got mine through LME (vendor) and their turn around time kicked everyone else's ***.
If the heads are good, you should make around 520rwhp with the FAST 90mm setup.
I got mine through LME (vendor) and their turn around time kicked everyone else's ***.
If the heads are good, you should make around 520rwhp with the FAST 90mm setup.
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From: Central, MA
Originally Posted by kumar75150
maybe its just me but everyone I have talked to said its not worth the extra 19 cubic inches to go from a 408 to a 427 on a IRON BLOCK.
1) the added stroke will cause oil consumption issues especially on an iron block
2) the 4.06 bore leaves the walls too thin on most iron blocks leading to a weaker block
1) the added stroke will cause oil consumption issues especially on an iron block
2) the 4.06 bore leaves the walls too thin on most iron blocks leading to a weaker block
408's seem much cheaper to build.
