Another what 370, 408, or 427 for boost thread
408 or 370 Well it looks like it should be a 408, but I have already got a 370 so now that I have that, would some T70's lag that much as in, what would I run in the 1320 full weight with a built 370, some Twin T70's, and a 3800 stall with a good tranny.
Parish what kind of tranny you got there? How much and what is the number? Pm me please.
Parish what kind of tranny you got there? How much and what is the number? Pm me please.
did you buy a stock stroke forged crank all ready?
the lag will be prety bad, a 408 would help but the lag will still be significant. if you want to do good at the track you will need to get it too spool on the starting line with either motor but the 408 will be more fun on the street. at the track you can spray it or get a transbrake and just hold it there till you have the boost you want.
tranny is in my sig, built 4l80e, i think Chuck charges over $3000 for one of them but for a "street" vehicle it is a great way to go.
the lag will be prety bad, a 408 would help but the lag will still be significant. if you want to do good at the track you will need to get it too spool on the starting line with either motor but the 408 will be more fun on the street. at the track you can spray it or get a transbrake and just hold it there till you have the boost you want.
tranny is in my sig, built 4l80e, i think Chuck charges over $3000 for one of them but for a "street" vehicle it is a great way to go.
Originally Posted by Paulz2820
parish your truck is bad ***...please show him what it takes to "reliably" make 1000rwhp. please i would love to see the pictures again. plus it will prove a point, thanks.
really these motors are strong from the factory and dont need anything all that special to go 1000rwhp.
Staging Lane
Joined: Oct 2005
Posts: 73
Likes: 0
I agree with Jose. You could put 61's on the 370 too if you do already have all the components. 70's are going to be way too big. Hell, they will support ~800 whp EACH! The biggest I would go is 67's, but even that is overkill.
Crap OK, I already bought a 370 and got a forged Lunati stoke stroke crank. A local friend is already started the build on it this morning, but maybe I can sell it.
Yes PArish already ahead of you, I ordered some AFR 225's 2 weeks ago, and can you pm me a number for that tranny shop, $3,000 is a lot cheaper than $5,000 from you know who
Who can recommend a good shortblock builder to build the motor? HPE, LME???
Also can they get a custom grind cam just for my setup?
Yes PArish already ahead of you, I ordered some AFR 225's 2 weeks ago, and can you pm me a number for that tranny shop, $3,000 is a lot cheaper than $5,000 from you know who
Who can recommend a good shortblock builder to build the motor? HPE, LME???
Also can they get a custom grind cam just for my setup?
370 Well, I was thinking and if I get 2 of the T70's with a smaller A/R like say .61, wouldn't I be fine on the street? I mean it's not like I am getting the .91 ones guys, wouldn't this setup be well worth over 1000+ RWHP, while still be streetable?
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SSU Moderator
Joined: Nov 2001
Posts: 4,857
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From: Austin, TX
I say an LME 408 with their oiling mods, LS7 top end, and twin 61's with cast manifolds if possible. if not cast, then coated mild steel. Keep everything above the K-member and you're golden!
TECH Enthusiast
Joined: Nov 2003
Posts: 689
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Originally Posted by Paulz2820
SHORTER stroke is more reliable there is no 
about it
and yes if you HAVE to buy a new forged crank then go 408
but if you wanna save 1000 or more bucks stay with the stock crank and just make 800...also if you read his post 1000rwhp and streetable are in the same sentence. like your gonna be driving around on the street with 1000hp anyways some of you just have no clue
about itand yes if you HAVE to buy a new forged crank then go 408
but if you wanna save 1000 or more bucks stay with the stock crank and just make 800...also if you read his post 1000rwhp and streetable are in the same sentence. like your gonna be driving around on the street with 1000hp anyways
some of you just have no clue
Originally Posted by ColePatWithem
Well, I was thinking and if I get 2 of the T70's with a smaller A/R like say .61, wouldn't I be fine on the street? I mean it's not like I am getting the .91 ones guys, wouldn't this setup be well worth over 1000+ RWHP, while still be streetable?
no offense but we've been building boat motors since you were probably born. our motors are all 4" stroke and 4.6" bores. the longer the stroke the less reliable. its a fact. sorry if you can't understand that
TECH Enthusiast
Joined: Nov 2003
Posts: 689
Likes: 0
Originally Posted by Paulz2820
no offense but we've been building boat motors since you were probably born. our motors are all 4" stroke and 4.6" bores. the longer the stroke the less reliable. its a fact. sorry if you can't understand that
Like I said, go call up W2W, Lingenfelter, Fast Times, Kuntz, Reher-Morrison, etc, etc, and ask them what they think about the reliability of a longer stroke street engine. I'll take their word over some ls1tech allstar boat builder, but maybe that's just me. Hey Hey Hey Guys everone has there own opinion, no penalty in that. I thank both of you for your advice. I am going to go with a 370, not for reliabilty, but because I aleady have it and changing the turbos gives me money instead of spending more on a new shortblock, so for me the 370 will get me the power I want. Thanks to all.
12 Second Club
Joined: Jun 2005
Posts: 227
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From: Mechanicsville, VA
PM "Mightymouse" here on the boards. He's been running a 346/47?? with a single 76 I believe. I know he did like 900rw+ and has now switched turbos. Rumor around Richmond was he's crested the 1000rw mark now...
Jon
Jon
Thanks I hope I enjoy it
Maybe my next setup will be a 408 TT?? I just want my car to have over 1000 RWHP and with a 370 and smaller turbos it would be easier, thanks for all the help guys.
Maybe my next setup will be a 408 TT?? I just want my car to have over 1000 RWHP and with a 370 and smaller turbos it would be easier, thanks for all the help guys. 