T/A2000

alright so i have some questions, I see so many people building 408's and such with the 6.0 iron block.. Is there anything to be concerned with using the LS1 block for this project? Callies LS1 408 or 427 Rotating assembly?

and if not lets just say I want to build this 427 on my aluminum LS1 block, what heads do i use?

This is what i was looking at
Callies LS1 427 Rotating Assembly, 4.125" Bore, -4cc Piston, 4.000" Stroke, 6.125" Rod Length

Precision Race Components Stg. 3 LS6 Heads & Cam Package
SKU: 199-PKG4
- PRC .675" EHT Dual Valvespring Kit
- Texas Speed TorquerV3 Camshaft
- 113 LSA
- 7.350"
- N-motion LS2 Single Roller Chain
- Melling High Pressure Oil Pump

Thoughts or concerns and input welcome.. and i do not know what the push rod length is going to be, i just selected that so that i could add it to my cart and copy and paste the info on everything together..

Jason

mark21742

The problem you would run into trying to use an ls1 is the bore cant be had without resleeving the block... If you don't mind putting the money out for the resleeving it can be done.

T/A2000

any idea what that might run?

mark21742

$1,300-1,500 for the sleeves, then probably somewhere around $1,000-$2,000 in machine shop labor.....if you don't mind the extra 100 pounds you can pick up a running lq4/9 for around $1,000, and if you look around might even be able to pick up just the bare iron block for $100-$200, clean and bore it, then drop all the new parts in

T/A2000

lol i just called the machine shop we use at work, they are going to do it for me for $680 for all 8 sleeves and bore.. i think we have a winner! now for the rest of the stuff heads and cam? what should I use?

mark21742

Lol hell yeah man that's a great price! Nice to have inside connections lol.

I'm personally running a fully forged 408 stroker in my 04 GTO... Ported/milled 241's with 57cc chambers to give me 12.5:1 scr and a 255/271 .624/.624 115 lsa cam, ported Edelbrock proflo intake and 60lb injectors here.....pulls insanely hard all the way up to my 8,000rpm fuel cut


Any idea what for head style you want to go with....cathedral port or ls3/7 style?

mark21742

Just remember with the extra cubes you can go with a lot more duration and still keep it with great street manners.

T/A2000

that's kinda what im trying to figure out, what is going to do the best on this set up?..

mark21742

What are your plans for the car? Auto, manual and rear gears?

mark21742

Lol last time I drove mine it had an 4a, 4,000 stall and stock 346 rear gears....can't wait to get it back together with my new 3speed manual, Ford 9", 4.56 gears and weighing under 3,000 lbs lol

T/A2000

Its a manual. and will be a stock 10bolt car until i get the engine done, then I am moving on to the suspension and rear end.. and i know it wont take much to bust it to pieces, this will be the first mod done to this car i bought it last year with 90k on it. and i have been saving to get started on this thing, Its going to be done top to bottom.. then its going to be my girls mustang getting a 6.0 swap