02 reaper z28

nice looking build up, im in for the ride

jiggler

good luck hitting your goal, will be watching this thread

z28SSilvest

Good for you OP, I plan on doing this kind of build, when I'm hitting my mid life crisis.

ws6guy27

iTrader: (31)

Im doing a similar build. 434 with all pro ls7 heads. Tooley cam. Fast 102 painted and ported. Also ana/nitrous setup. Cr is 12.6 with mls gaskets.. hoping see 640ish rwhp in my ws6

Knight-Z06

434 powa , awesome build 427 looks like a winner , cant wait to see it in person

427zm

iTrader: (9)

I hope this isn't my mid-life crisis, I'm 33!

That is going to be a beast! Will you be running E85 on the street? That's some serious compression!


Thanks Knight , full vids will be done when it's finished, and shortly after, it'll be mile ready!

ws6guy27

iTrader: (31)

[QUOTE=427zm;17901506]I hope this isn't my mid-life crisis, I'm 33!



That is going to be a beast! Will you be running E85 on the street? That's some serious compression!

No ima be running ms 109. Iv heard to much problems with e85.. ur going need bigger injectors if running e85.. Ima be running 60s and unleaded race fuel. E85 gotta have bigger inj bc motor will lean out or not produce the power u want bc tune wnt be up and up

John B

iTrader: (10)

Sounds like you should come close to your goals based on Doug's build in this thread since it looks like you're using the same cam https://ls1tech.com/forums/dynamomet...hp-532wtq.html.

Two pearls of wisdom that I would offer you.....go with a 0.040" thick head gasket for proper quench on pump gas (I use this gasket with 11.8 SCR and pump out 680RWHP on a stock LS7 short block using 92 octane pump gas!) and get the larger 102mm TB and use a ported FAST.....then you'll exceed your goals! Good luck, nice build!

LPE 403

iTrader: (6)

And don't forget to find a track to back up "those numbers"......lol.

427zm

iTrader: (9)

I followed your build quite a bit when looking at options for this build. The Fast and 102 were out of scope to this point in the build, b/c I'm having to upgrade my clutch and my cooling package. Oil cooler, Dewitt's Radiator, and Spal fans took priority, due to our vettes typically running hot when adding HP. All in time though....

What MPH should 600 wheel in a Vette produce?

ctd

iTrader: (1)

Chris supplied & ported my TF 235's. Is he helping with your camshaft choice?

427zm

iTrader: (9)

No, but he works with my install shop a bunch on LS7 top end porting, and was completely aware of the cam we were going to use. He's been great to deal with. I highly recommend him.

Silverado2469

iTrader: (1)

Ill be sub'd. Looks like a great build. Good luck. Cant wait to see the end result.

ryanzcastro

iTrader: (1)

Can't wait for my 434ci motor to be done too. ERL said its ready so I hope to have it first thing Jan. Can't wait to see yours done.

427zm

iTrader: (9)

Alright! I'm guessing you're sticking it in the Bimmer? That'll make for a fun machine! Are you also going LS7 top side?

maroonls1z

My ERL 434 is sitting in the garage waiting to be assembled, sad to look at. I plan to run the WCCH stage 2's with 0.040 gasket for SCR 11.8 and i have a katech torquer 116 which should put my DCR around 9.0. Where are you gonna get it tuned?

gnx7

iTrader: (28)

Is the .040" thick gasket a Cometic? I assume it isn't MLS style...

maroonls1z

i have a MLS 0.051 from cometic now but im going to use 0.040 for a closer quench. the website says they have them in 0.040

427zm

iTrader: (9)

Have you already purchased your cam? Reason I ask is, the 116 is putting you right on the edge of pump gas w/ that high of DCR. My father has the 116 in his C6Z and it responds just like the stock cam did. It's a nice cam, but with the extra cubes we have with our 434's overlap will be soaked up a bunch. My cam is going to have 15* of overlap, and it should be real tame even w/ that amount of overlap.

The Cometic is the stock thickness, .051. This is what QMS recommend I use. Since they probably have messed w/ more LS7's than just about anyone else in the country, I'm taking their advice.

maroonls1z

I have it already. It is kind of close on the DCR, but the 110 version with factory compression puts it at 9.1:1 DCR and people run that on 91 octane. I was considering running the 0.051 gasket since i already have it, but after reading, pretty much everywhere recommends running 0.040-0.045 quench for better performance and motor longevity on the street. Not entirely sure how it does this though