JUSTIFIED C5

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

kumar75150

umm most people told me not to go with a 427 with the iron because of 1) the big stroke 2) you really have to punch out to block to get a 4.06 bore

JUSTIFIED C5

How are the eagle rotating assemblies working out, balance issues still?

PREDATOR-Z

more cubes=more power (off course also more money)

hydfixer

I had MTI do my alum 430, very nice work. I also used the eagle rotating assy. No problems yet.

2000 Tran Zam

iTrader: (2)

also, you can only get so much out of ls1 heads. you might wanna upgrade to ls6 stage 3's or afr heads.

GEAR M UP

427 all the way.....

ss rally red

iTrader: (8)

I agree I have a 2 year plan(car paid off, less than 30K on it) Will have around 15K to spend on motor with everything else set to go susp/12 bolt/clutch/etc. I am old school (44 ) but the 427 has a great ring/history to it

ss rally red

iTrader: (8)

I agree

VINCE

iTrader: (1)

I like my 408ci..

kumar75150

did anyone not see that he wants to do the 427 out of an iron block?

PREDATOR-Z

And?????

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

Race Car Driver

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.

JUSTIFIED C5

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

kumar75150

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.

marc_w

I agree - I always thought that the 'rule of thumb' was to resleeve for a 427.

408's seem much cheaper to build.

2MuchRiceMakesMeSick

Im going 408 low compression with a turbo but I would get a 427 turbo if I could afford it

PREDATOR-Z

Check HPE (sponsor>>>>) they got a 408 for $3900. They are top notch in their machine shop. SAM instructor.