mradams2

so i disintegrated my ls1 bottom end about 2 months ago =/
but all has worked out in the end i ordered my new 427 iron stroker block and tsp cam package. it cost me an arm and a leg but i didn't want to be back to what is was . that's no fun right? so was jw if anyone had any rwhp/tq estimates for me or has a similar set up. the new parts and block will be here next week then will be install which will be my first time doing a motor swap. hopefully all goes well.

my parts.
427 iron block
worked 243s flowed 320 cfm 59cc chambers
prc dual springs
new valves 2.055/1.600
tsp Texas giant 248/254 615/622 on a custom 110+1 lsa
42 lb injectors
ls6 intake for now hope to buy a fast before tune
long tubes,xpipe etc
4.10s ta cover
LS7 clutch
that's the main things.
like i said any guesses on rwhp/tq or any suggestions on anything? please let me know as i said have never been this deep into a motor. when i get it finished a will post a vid of the numbers and 1st start up.

also im not sure what pushrod length to run i ordered the hardened ones from tsp 7.35 length . but also bought the tool to measure. this is the main thing im worrying about
thanks

COPO9560

Please post your numbers when they come in.

Your heads & intake will limit your peak hp potential but this should be a torque monster and fun to run on the road.

Assuming heads came off last engine?

brian_rs/ss

ouch that ls6 will starve you. but with those cathedral port 243's your low end should be retarded. after the FAST it should even out and you'll see big gain up top. i'de say around 520-530 rwhp with the FAST. no telling what it would be with the ls6.

mradams2

yes the heads are off my old set up. i know the LS6 will be the bottleneck of the motor but "due to financial embarrassment" haha.
thats what i have to run until i can sell my nitrous setup etc. im hoping to have the fast on when i get it tuned. im hoping to be 500+ for sure though. you guys are spot on from what else ive heard. it should be a torque monster and have room for improvment and be 510-540 in the end im def gonna post pics of build and the start up vid also heres some pics of the old motor well whats left

krissoto

iTrader: (3)

thats a helluva lot of juice to be sprayin. u lookin to run low 9's or faster.hope u have the rest to back the motor

mradams2

no im not spraying this new motor haha no way cant afford to do this again

brian_rs/ss

you MIGHT see 540. but you'd be lucky. maybe with a 102/102 be even then you'd need ls7 or l92 style heads. 243's move air at a high velocity, l92's move air in large volume. which means the 243's will have awesome tip in, a nice high, flat torque curve, and peak sooner. the square port head will have a more steep torque climb and carry the curve higher.


i would sand bag and tell people you make like 450 out of a 6.0

mradams2

"i would sand bag and tell people you make like 450 out of a 6.0"
hmm i like the idea of this!

brian_rs/ss

you could totally get away with it too. all they will see is an iron block, 243 heads, and a ls6/FAST intake.

mradams2

lol i had that happen once i was at the track guy popped his hood i a fast and bolt on didnt pay attention to the heads i was like i may want to run him later he goes up does an 11.48 at like 128 turns out 427 haha

brian_rs/ss

yup, what's even better is the guys with stroked ls2 blocks with 243 heads that claim they are ls1's

had that happen to me and he even had a hidden 50 pill ran through the air tube on his lid

mradams2

this guy claimed to be all motor. i didnt see any lines. whats done to yours man? good to see a pewter haha

brian_rs/ss

just a lowly little ls1. i'm actually gearing up to have it torn down.


instead of expplaining it again just read this. it spells it all out https://ls1tech.com/forums/generatio...d-rebuild.html







and don't forget the vids in the sig \/

mradams2

dang man that sucks you have to go over there. how long you gonna be on deployment? if your by anychance close to austin are you i wok at a parts store i can get you a good discount

brian_rs/ss

nah i come from houston, in california now. and i'll be over there for 7 months. i leave in like a week, so my dad has to do all the leg work. it sux i hate to do it to him but i HAVE to have a car when i come back as they changed the game plan on us

mradams2

ya im just learning the military schedule my brother just went in about a year ago so im beginning to see the oh by the way schedule the have you guys on. but thanks for doing what you do man. i always see military guys with bad *** fbodies haha. i was at ft hood the other day visiting a friend hoping to see some but i guess they were all in garages

brian_rs/ss

yeah ft. hood has a some killer cars lurking around. you have to be there long enough to sift through all the ricers and wanna be's. which is any military base really...lot of young dumb kids with a steady pay check for the first time in their life and they blow it on their 4 bangers.

mradams2

hahaha lmao my brothers buying a lifted duramax! i saw your classic props!!!!

brian_rs/ss

YES.


thnx, it was a father and son project

mradams2

i know i wish had a big duramax to daily or a classic camaro i mean id be down with either one haha but i dd a 273k 96 sierra oh yaa stylin