351w power
 

here is a list of my new 351w i built for my 68 fastback. i drove it for the first time yesterday and was quite impressed. please look over the stats and give your oppinion of what kind of horsepower and torque you estimate this combo should produce.
thanks

block-1983 351w bored .030

crank-stock turned .010/.010

rods-stock

pistons-sealed power hyperutectic .030

bearings-clevlite 77

cam-comp cams extreme energy--
valve lift intake--.493/exhaust .512--
lobe seperation 111 degrese---
lobe lift intake .308/exhaust .320---
duration at .05--intake 218 /exhaust 226

heads--69 351 w ported and polished with 5 angle valve job 1.94/1.60 stainless steel chevy valves with double springs, stock hardened push rods,chevy 1.5 cast steel rockers on ARP studs and comp cams guide plates

intake---holley street dominator high rise with 2 inch spacer

carb---edelbrock 600 mech secondary (waiting on my berry grant 750 demon)

ignition---msd pro billit distributor, msd 6al, msd blaster coil, autolite 45 plugs, accel super stock wires

exhaust---holley black jack full headers, h pipe, 2 chamber flows, 2 1/2 inch exhaust with 3" crome tips.

car has power steering,a\c,and alt on it

trans--68 c4 with stage 2 b&m shift kit (no stall)

rear gears--3.00

all estamates are welcomed
this is the first engine i have ever built and i did it by myself in my garage (minus machine work on crank,block,and heads), with pointers from friends and family

pictures are
1 old motor comming out
2 new one going in
3 first start up (setting valves and putting in coolant thats the mess u see)
4 one of many build shots

Re: 351w power
 

You better get rid of the chevy rockers! I tried this once and could not get rocker geometry correct without some weird pushrod length. Got ford rockers and with off the shelf pushrods everything fell in place.

Re: 351w power
 

cant i already tried ford rockers. they dont work on chevy valves. the chevy stems are shorter then the fords, so the ford rockers run on the top of the spring perch instead of the stem which can cause the keepers to come out and drop a valve down in the cylinder. i got very lucky and had only one keeper come out and found it on top of the head, so i had to go back and change all the keepers, spring perches and push rods because it ate some of them up so i changed them all.

Re: 351w power
 

here are a few more pictures for your enjoyment

1 new motor tring to see if the hood will clear.
2 no it didnt but had a 04 gt scoop laying around so all is good
3 original 4bbl 302
4 new 351w

Re: 351w power
 

my guess would be about 300-325hp and about 375-400tq.