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  1. #251
    Xtreme Member


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    Apr 2012
    Name
    Mike
    Vehicle
    96 Z28, 95 Roadmaster
    Location
    Conshohocken, PA
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    1,862

    Default

    Quote Originally Posted by shownomercy View Post
    Would advise thoroughly researching hellfire rings prior to installing and using them.
    Thanks. I knew they were tough on bores but I didn't realize the extent of it. Gonna sell these and grab something more streetable.
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

  2. #252
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    Mike
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    96 Z28, 95 Roadmaster
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    Conshohocken, PA
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    Default

    Checked the p/n on the Hellfires, they weren't even the right size lol. To ebay they go.
    Also did some math and determined the ARP2000's are total overkill because of how light the pistons/pins are. Might scoop them anyway if the price is right but I'd rather put the money towards valvetrain.

    Updated shopping list:
    Scat 3.8" 4340 crank for 6" rods
    Scat or Eagle FSI I-beams, both 4340, 6", with 7/16" ARP 8740 or better
    Johnson 2110 lifters
    BTR spring kit with the titanium retainers
    Melling 10552
    Mahle plasma moly rings, file fit, std tension
    Cloyes 9-3651X3 so I can run a mech pump (don't wanna rule out autox/RR)
    Felpro 1074's

    Black friday needs to be here already
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

  3. #253
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    Mike
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    96 Z28, 95 Roadmaster
    Location
    Conshohocken, PA
    Posts
    1,862

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    Update on this jawn...
    Car has been sitting for quite some time as it needs tires, front suspension and steering work. I can still drive it around though because why not?

    I've slowly been collecting parts to build up the 4-bolt block on the side. I also dug up a bunch of old parts that I'm intent on using as they're mostly new or lightly used. I was originally going to have the LE1's redone with larger valves, but instead decided on ditching them altogether for a better casting that'll most likely be ported 21* Trick Flows (because they have small chambers). The old motor will probably get dumped into my Firehawk or sold to a friend.

    Pics:

    6x Johnson 2110 lifters that have been sitting on the shelf for a while. I bought some as spares for the Camaro for some reason? I just need 10 more.

    0511211628.jpg

    New Scat 3.8" 4340 crank

    0511211629.jpg

    New Eagle FSI 4340 I-beams with the 7/16" ARP 8740 bolts

    0511211630a.jpg

    Used Comp XFI468 I bought off a member here years ago. I think it only had dyno time on it? In great shape and I'm hell bent on using it.

    0511211637.jpg

    The ole World Motown EFI single plane I was going to use on the Camaro. I think it's more at home here. Edelbrock elbow, 90mm TB, and I have new fuel rails for it.

    0511211631.jpg

    So the deets are...
    388ci
    12-12.3:1 SCR on 93oct
    XFI468 with questionable rocker selection
    Probably LE TFS 21* heads, upgraded 2.055 intake valve
    Single plane with some mild work to the plenum area (2 and 6 need to be unshrouded)

    So..... 500whp on a shelf cam? Or maybe I'm smoking too much crack
    Last edited by Catmaigne; 05-12-2021 at 12:02 PM.
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

  4. The Following 4 Users Say Thank You to Catmaigne For This Post:


  5. #254
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    Mike
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    96 Z28, 95 Roadmaster
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    Conshohocken, PA
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    Did a quick mockup of the block. I was under the impression that this thing had a line hone/bore done because it has ARP studs, but looking closely at the main cap bores tells me that's not true. I torqued 2 of the caps down to ARP's recommended spec and was seeing about a thou or more of out-of-round, so it needs to go back to the machine shop. I ordered some Milodon windage tray studs to sub out a few because these studs are too short anyway.

    Quick rod side clearance check on the first rod journal was 0.013" which is good.

    0517210157a.jpg

    Also checked the deck clearance with a feeler gage and straight edge which came out to 0.007" in the hole. I made a deck bridge tool to double check and got the same thing.

    0517211921.jpg

    I've also been debating swapping the cam out for a Lunati 20080723 which will have a little more lift than the XFI (would be using 1.7's on both). Currently trying to figure out what springs I want to go with, but it's slim pickins for duals on 11/32" valves. I've been considering the BTR SK004 kit with titanium retainers, but the rate is slightly higher @408 which may make the open pressure a little too high for either of the cast cams. Trying to figure out if there's a retainer that'll work with the lower rate SP001 BTR or TSP duals and my valves. I may have to suck it up and get the pricier Nexteks though.
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

  6. #255
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    Mike
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    96 Z28, 95 Roadmaster
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    Plans changed a little bit. Ditching the XFI for a Comp custom grind from Lloyd with more duration, overlap, and lift. Heads also showed up. They're LE 21* Trick Flows with the 2.055" intake valve upgrade and a BTR spring kit with Ti retainers.

    Just got the block back from the machine shop after a line hone. Now I need to grind the block for rod clearance and set the rods/mains.

    0907211404b.jpg

    0907211404a.jpg

    0904212051b.jpg
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

  7. The Following 4 Users Say Thank You to Catmaigne For This Post:


  8. #256
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    Chris
    Vehicle
    1994 Trans Am
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    PA, USA
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    That cam is meaty lol

    1994 Trans Am Under the knife - but it's alive!!! (5.3 LM7/CPT 60e/QP 9") BUILD THREAD
    2009 G8 GXP M6, full exhaust, catch can, cai, stereo
    1975 Olds 98 455 burnout machine/panty dropper | 1985 C10 new project

  9. The Following 2 Users Say Thank You to harner For This Post:


  10. #257
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    Shaun
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    1994 Formula
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    Phillipsburg NJ
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    thats gonna be a fun car

    Sent from my SM-N975U 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!

  11. The Following User Says Thank You to SSlowBoat For This Post:


  12. #258
    Xtreme Member


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    Mike
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    96 Z28, 95 Roadmaster
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    Conshohocken, PA
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    Quote Originally Posted by harner View Post
    That cam is meaty lol
    I asked for the most cam I could get with hydraulic lifters on the street, and then some
    500 tire or bust lmao
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", Procharger D1, ???whp
    95 Roadmaster T-56 swap, LE1s, baby cam, 4.56s, "The Cammaster"
    95 Firehawk hooptie, bolt-ons and suspension

  13. The Following User Says Thank You to Catmaigne For This Post:


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