440 six pack pistons and some questions
Do they need to be forged for your app? Planning on spray or something? Low RPM's shouldn't pose a problem for any stock cast 10.0:1 slug,KB's etc., just curious.........
I ran the stk. cast 9.2:1 slugs in my 383, bangin' the 4gear at 6,600 w/a 125Hp shot of NOS, and I beat the piss out of that eng.! Just sayin'.....
No they do not but I was told that stock cast pistons in the compression range I wanted to be in were not avail.
Whats done is done, Im going to post here all the parts that Ive collected so far, Im sure that I could have done things differently, its tough figuring it all out unless someone is holding your hand so Im sure Ive made some mistakes.
Im a bodyman not a mechanic.
Id appreciate not hearing throw this out and buy this all over again cause chances are thats not gonna happen cause I work too hard for my money but tips on what I can do to make it all work as efficiently as possible would be appreciated.
Ok heres what I have so far:
1-78 440 block-cast crank, originally sitting in front of a 727 R.V.
I bought a new flywheel which I plan to have balanced along with the dampener, crank, rods and pistons
I plan to use stock connecting rods and the full floating wrist pins included with the piston set.
The block will be bored .030 over and Ive already been told to make sure that the machinest leaves .035-040 clearence in his final hone for piston expansion.
2- The L2355F-30 forged six pack pistons cause they were the only ones avail and anyway people seem to like them. I dont know what the valve relief dome CCs is that Wallers compression calc is asking for on these pistons, there are 4 valve reliefs, thats all I know at this point.
3-I plan to put this in front of an N.P 435 trans, dont know the gear ratio but I can get them if necessary, 1st is geared stupid low if that helps.
4-Lunati camshaft with specs below:
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,400-5,700
Intake Duration at 050 inch Lift: 220
Exhaust Duration at 050 inch Lift: 226
Duration at 050 inch Lift: 220 int./226 exh.
Advertised Intake Duration: 262
Advertised Exhaust Duration: 268
Advertised Duration: 262 int./268 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.475 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.494 in.
Valve Lift with Factory Rocker Arm Ratio: 0.475 int./0.494 exh.
Lobe Separation (degrees): 112
Camshaft Gear Attachment: 3-bolt
5-N.O.S Pete Jackson noisy gear drive. Not changing this, its what I like and thats all that matters.
6- Cast heads ( 452s ) reconditioned with 2.19 X 1.88- 3/8 Stainless Steal Valve Stem oversized valves Stock valvetrain but Im open to nearly anything.
7- Probably the Edelbrock performer 440 intake only cause it came on one of my parts engines and I hate to just not use it but Im open to a better intake
8- carb I am not set on, performer intake came with a fairly new looking matching carb, know nothing about it other than it looks not too used and grimy or I can use the 800 or 850 carb that came on the 78 440 engine cause it also looks exceptionally clean and in good shape.
This is all going in an 5500-6000 pound 4 wheel drive A-body and I plan to drive the truck ( I mean A-body :) )to shows, on nice days, Itll run 4.10 gears and 37 inch tires which Id like to spin every now and then just to show off.
I plan to run P.S alt. and A.C
Hope I didnt miss anything and I look forward to any positive suggestions. Thanks
