Become a ltxtech.com member, Click here to register!
BP-Automotive

Results 1 to 7 of 7

Thread: 327 LT1

  1. #1
    The Nitrous Outlet Junkie


    Status
    Offline
    Join Date
    Apr 2010
    Name
    Troy
    Vehicle
    1994 Firebird Formula
    Location
    moore, ok (south okc)
    Posts
    3,274

    Default 327 LT1

    I was thinking today and I got to wondering if anybody has built an LT1 down to a 327 cid. By switching out the crankshaft to a 3.25 stroke. I wouldn't consider it unless there was some type of documented repeatable improvements. But you always hear about the old-timers talk about their 327 small block Chevys and how bad them Motors were kind of makes me wonder what's going on?

    Sent from my SM-N950U using Tapatalk
    94 Formula "budget build" #thebeaterbird
    10.177 @128.31 on a lil 250 shot
    350, LT1, carb, LE grind cam, th400, 4k stall, ford 8.8 w/ 4.10s

  2. #2
    LTX Master


    Status
    Offline
    Join Date
    Aug 2013
    Name
    JB
    Vehicle
    1994 Camaro Z28 1996 Camaro SS
    Location
    Atoka,TN
    Posts
    531

    Default

    I've never had a de-stroked reverse cool LT1 but I've had a few 327s. The only difference that I've seen is that they love the upper RPMs.

    Sent from my SM-G955U using Tapatalk
    Same as everybody else...350 small block, double hump heads, 3/4 cam

  3. #3

    Default

    There is no improvement at all. It will make less power and torque than a 350. No replacement for displacement. On paper, an engine with a shorter stroke can potentially rev higher, but in the real world 350's can rev just as high.
    '94 coupe, 10.15 at 133.65 414" LT1, 4500 stall, n/a, pump gas, mufflers, street trim
    '15 Z/28, Red Hot, AC, Autocross beast

  4. The Following User Says Thank You to joelster For This Post:


  5. #4
    Xtreme Member


    Status
    Offline
    Join Date
    Nov 2012
    Name
    Shaun
    Vehicle
    1994 Formula
    Location
    Phillipsburg NJ
    Posts
    7,249
    Supporting Member

    Default

    Quote Originally Posted by zooguy View Post
    I was thinking today and I got to wondering if anybody has built an LT1 down to a 327 cid. By switching out the crankshaft to a 3.25 stroke. I wouldn't consider it unless there was some type of documented repeatable improvements. But you always hear about the old-timers talk about their 327 small block Chevys and how bad them Motors were kind of makes me wonder what's going on?

    Sent from my SM-N950U using Tapatalk
    no torque. high rpm hp. I legitimately looked into doing it since I got punked on a l99 once, but it's really not worth the effort

    Sent from my SM-N950U using Tapatalk
    2021 Charger Scat 392
    1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot

    The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
    10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!

  6. #5
    LTx Guru


    Status
    Offline
    Join Date
    Apr 2013
    Name
    Fred
    Vehicle
    1994 Formula - SOLD
    Location
    Central NJ
    Posts
    2,279

    Default

    As a highly qualified “old-timer” (aka “senior citizen”) I can explain the place the 327 holds in our hearts.... it was a nice upgrade from the previous 283, which had been a nice upgrade from the original SBC at 265 ci. It’s as simple as that.

    I had a 1956 Bel Air convertible with the 265. When I graduated from college in 1963, I sold the 56 and jumped on a 1963 Bel Air I found sitting in a dealer showroom - had a grand total of three options - 300 HP 327, posi rear axle and an AM radio. Base 3-on-tree, no power anything, no A/C. Ran the pi$$ out of that thing. Swapped in a close ratio T10 4-speed and 4.11 gears. No trouble dusting 390 Fords. People had lost interest in the 265 and 283 as Chevy discontinued them. The big-buck guys had their 348 and 409 “big-blocks”.

    When Chevy upped the SBC to 350 ci, interest in the 327 died off. The only reason the 302 showed up in the Z28 Camaro was the SCCA's 305 ci displacement limitation set in Trans Am Racing.

    The only advantage of the 327 was the fact it had 44 more cubic inches than the 283.
    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.

  7. The Following User Says Thank You to Injuneer For This Post:


  8. #6
    The Nitrous Outlet Junkie


    Status
    Offline
    Join Date
    Apr 2010
    Name
    Troy
    Vehicle
    1994 Firebird Formula
    Location
    moore, ok (south okc)
    Posts
    3,274

    Default

    Quote Originally Posted by Injuneer View Post
    As a highly qualified “old-timer” (aka “senior citizen”) I can explain the place the 327 holds in our hearts.... it was a nice upgrade from the previous 283, which had been a nice upgrade from the original SBC at 265 ci. It’s as simple as that.

    I had a 1956 Bel Air convertible with the 265. When I graduated from college in 1963, I sold the 56 and jumped on a 1963 Bel Air I found sitting in a dealer showroom - had a grand total of three options - 300 HP 327, posi rear axle and an AM radio. Base 3-on-tree, no power anything, no A/C. Ran the pi$$ out of that thing. Swapped in a close ratio T10 4-speed and 4.11 gears. No trouble dusting 390 Fords. People had lost interest in the 265 and 283 as Chevy discontinued them. The big-buck guys had their 348 and 409 “big-blocks”.

    When Chevy upped the SBC to 350 ci, interest in the 327 died off. The only reason the 302 showed up in the Z28 Camaro was the SCCA's 305 ci displacement limitation set in Trans Am Racing.

    The only advantage of the 327 was the fact it had 44 more cubic inches than the 283.
    Well that's extremely helpful and now I know the history behind it ... thank you sir.

    Sent from my SM-N950U using Tapatalk
    94 Formula "budget build" #thebeaterbird
    10.177 @128.31 on a lil 250 shot
    350, LT1, carb, LE grind cam, th400, 4k stall, ford 8.8 w/ 4.10s

  9. #7
    Lurker


    Status
    Offline
    Join Date
    Dec 2013
    Location
    SoCal
    Posts
    250

    Default

    ...ah yes...memories of my 327 with "camel" hump heads (2.02/1.60) right out of a junk yard pull back in '70. Got it for $75 and backed it with a Muncie 4 speed in a 55 short bed truck. Drove it like I stole it and it never missed a beat.
    96 BBB 383/T56

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •