jimmythewall

I was interested in buying these heads but I think the flow numbers are kinda high....Stock lt1 castings .............


Valve lift intake exhaust
.050 52 48
.100 91 72
.150 118 105
.200 151 124
.250 177 140
.300 209 154
.350 237 181
.400 260 194
.450 281 208
.500 297 220
.550 309 227
.600 312 231
.650 313

SS Mark

Stock LS1 castings maybe, no way they are LT1 or the flow bench(i think thats what its called) is messed up. They could just be lying to you also
-Mark

97Z-M6

somebody is trying to pull the wool over your eyes.

.400 260 194 no way maybe a 50 inches hg

xxsaint69x

maybe if they are hogged out AFR 227s ehehe

Fastbird93

$50, and that's my final offer!

Reality check dude: There's NO way those are real world numbers.

RamAir95TA

bad95formula

My TEA ported LT4's didnt even flow that much!! They had to use a pipe and then exaggerate the numbers even more on top of that. LT1 castings cannot flow that much without SERIOUS modifications that nobody on this earth is willing to pay for. I wouldn't trust em. If you do buy them, get them flowed again after you buy them so you know what they really flow.

jdizzell

Look for a coolant passage on the back side of the heads. That side is parallel with the rock arms. If there is no coolant passages then they are not LT1/LT4 heads.

Injuneer

You need to IMMEDIATELY take those heads to the nearest CNC shop, and have the runner copied. Then start duplicating them on all the stock/virgin LT1 castings you can possibly find. You will be able to sell them for at least $3,000 a set. They are flowing close to the custom made Canfields that George Baxter used on his 1,125HP 30th SS convertible.... 3,900# running 9.04@155mph.

1982z28with18s

Jim, just noticed this post, what was the site to the guys trying to sell you those heads?

P.S. I told you they were fake #'s.

disco192

EddieP

Are you talking about this guy?

http://cgi.ebay.com/ebaymotors/ws/eB...tem=7918079915

Those definitely are stock castings, and I can't see any welding or other major work that would get them to 310+ / 230+ like he claims. I know that I won't be doing business with 'VPE' after seeing outragous claims like that.

EddieP

Look at their 'flowchart' ... looks like it was copied right from AFR:

http://home.comcast.net/~vperacing/w...3481/site1.jpg

TQdrivenws6

Hahahahaha. Thats nice, I wish that was possible, but not on a stock LT1 casting. Look at the bowl, there isn't enough work there for 260cfm. LOL

It even says 28" on the flow sheet.

Gripenfelter

I sent a link of this thread to winner of the auction.