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Thread: Factory 4 bolt block limit
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02-07-2017, 09:25 PM #11LTx Guru
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I've never heard of Canfield heads.....
Don't know when they started producing the Canfield LT1's, but by 2001 they were no longer available. Baxter found an unmolested used set, and liked them. I heard rumors that reworked (and I don't know by whom) they were somewhere between 320 - 340 CFM. I know he had Jesel make custom offset rocker arms for them. He told me/showed me a lot, but not everything.
All ancient history.
http://www.dw-zone.com/canfield/canfield.asp
http://www.dw-zone.com/2002rebuild/h...k/raceport.aspSOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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02-08-2017, 02:24 AM #12Lurker
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I swear @Injuneer is the "keeper" of long lost LT1 history it's awesome.
Sent from my iPhone using TapatalkArctic White 1996 Z28. Stock internal LT1, CAI, LM1, MGW Shifter, 3.73's, some suspension junk, and shiny salad shooters (retired). Forgestar F14's 18x10 on all 4. Fun stuff coming soon. Also, Cali smog regulations suck...period. **Insert witty quote here** LT1FTW that is all. Have a nice day.
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02-08-2017, 06:25 AM #13
Yes, Injuneer has been a great resource since the early days. I remember the old days on camaroz28.com when these cars were new...lol.
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02-09-2017, 12:52 PM #14
Yeah, supposedly from what Ive found online, the 220cc heads flowed around 280 cfm unported. These had extensive work done to them and the guy claimed around 300+ above .600lift. Builder just informed me due to the offset of the intake valve i will need to check interference due to the valve relief not lining up, so this might not work out for me afterall because I refuse to disassemble the shortblock at this point. Worse case scenario I use the ported stockers and upgrade the blower. A Vortech Ti flows like a D1SC. My custom S trim conversion would need to remove some of the extended tip of the impeller due to T trim volute not having enough meat in that area to machine. Best guess is itll still flow more than T trim, around 1300 cfm. More than enough to get to 600 @ wheels even with 260 cfm heads and the cam Ive chosen.
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02-17-2017, 07:33 AM #15
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02-20-2017, 08:02 PM #16
13178702_490016174536746_606882651911470294_n.jpg
the block isn't going to sweat ~7001994 Formula, 396cid, AFR 227's, Single plane, and 2 of the big ones.
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02-27-2017, 12:12 PM #17
What kind of combo is that with?^
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02-27-2017, 01:55 PM #18Lurker
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yes please share
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02-27-2017, 03:15 PM #19Long Live the Opti
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02-27-2017, 05:17 PM #20LTx Guru
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Can only tell you what I have seen work. Madman (along with Baxter and Sled, the three top LT1's of the day) had a setup that appeared to be similar to George's, except an ATI S/C instead of the Vortech. All three of them were running 9.0x's. Actually saw Madman and George run side-by-side when we arranged a GM EFI event at Englishtown. Second Street built a virtual duplicate of George's engine for John McMullen, Jr. (his father was the owner of the Houston Astros, and then the NJ Devils - cash was no object). Have videos and photos of a lot of these cars.
There was a guy with an LT1 in a 3rd Gen. He actually won our first GM EFI event, as I recall. But the second year he upped the stakes with a huge shot of nitrous. End of LT1.... reportedly cracked the block on the first pass. I know nothing regarding the details of his build, or the accuracy of the claimed failure.SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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