screwing together my engine for my tow rig

[Anonymous]

hey,
been awile sence i've done this, any advise is welcome

truck is a 87 1/2 ton chevy 4wd with a granny 4 speed

Combo:

.40 flat tops

stock 87 truck heads

CAM (i was hoping to use the stock springs)
Duration Advertised 278° Intake/288° Exhaust
Duration @ .050'' 204° Intake/214° Exhaust
Lift @ Valve .420'' Intake/.442'' Exhaust
Lift @ Cam .280'' Intake/.295'' Exhaust
Lobe Separation Angle 112°
Intake Centerline 107°
Intake Timing @ .050" Open 5° ATDC
Close 29° ABDC
Exhaust Timing @ .050" Open 44° BBDC
Close 10° BTDC

Edelbrock performer intake

Holley 650 spread bore mech secondays

long tube headers

pretty much everything else is stock

i haven't built a motor in 10 years, wish me luck

Thanx

-Asa

 

[GreenDragginBu]

Good Luck...

 

[Anonymous]

Thanx, every thing went togeter real smooth until we went to instal the rockers and noticed one head was set up for self alining and one was not :x (see pics) wich makes me ask if you can use self alining rockers on a head cast for none self alining?

 

[Anonymous]

you can use those rockers on both heads....your truck isn't fuel injected anymore?

 

[Anonymous]

Thank you,
and to answer your question i'm swithing it to a carb/HEI set up, later on i plan on swaping over to vortec heads with a more thought out cam, got the current edelbrock cam NIB for $50 as a matter of fact the whole combo was put to geather from stuff i already had or i god cheap the only thing i spent money on machine work

dose any body know if my stock springs will be ok? i don't plan pulling much past 4500rpm do to the swirl port heads :-k

 

[79malibusbc]

i think the max on the stock springs is .460'' i do know thats that cam will work with the stock set up because my brother has it in his camaro

 

[Anonymous]

i think the max on the stock springs is .460'' i do know thats that cam will work with the stock set up because my brother has it in his camaro

cool, i will keep my stock springs, just curious how strong dose your brothers engine run?

 

[Anonymous]

just an fyi I purchased my 062 casting vortec heads off of craigslist for $200 complete with rockers and all. They run perfect too! so just keep your eye out for them.

 

[Doober]

Vortec heads are awesome for budget motors.

 

[79malibusbc]

his motors pretty much stock other then the cam, intake, carb and headers and duals with dynomax turbos mufflers. its a pretty nice combo and it pulls well and has good torque in low rpm range and maxes out at 4500 rpm