thomas707

alright i want my 1989 305 tbi auto to sound beefier will this camshaft fit and will there be any damage to my engine if it does fit an i put it in.

http://www.summitracing.com/parts/CC...e%7c5.0L%2f305

Grumbles

Your stock valve springs are not rated for that lift.

Also, your guides may need to be turned down to accomodate the increased travel, though I'm not 100% on whether or not thatwill be necessary.

thomas1976

Yes damage, it is not the right cam for your LO3, it is flat tapped, it has too much lift and duration.
You need a hydraulic roller cam (wich is better). LT1/LT4 (not hot) cam is already plenty for your 187 heads. https://www.thirdgen.org/forums/tbi/...-ultimate.html

For the sound you need to look for an aftermarket exhaust, the cam is not going to change it much.

greatskiiiier

iTrader: (1)

i agree with everything stated, although a cam will change sound, but for what you want id just get an exhaust

skirkland1980

iTrader: (2)

the tune will need to change.

JakeJr

Oh, NO! That cam is MUCH TOO BIG for your engine. Also, it's a decades old 30+30 design, hence nostalgia. Barely idle, no brakes, forget emissions, virtually no low end, power won't come on until way up the band.

Awful choice, you'd hate it.

Jake

Atilla the Fun

Start with the exhaust, leave the cam alone for now. You'll never get a racey, lopey idle with the TBI system anyway. Besides, sound doesn't really matter. Only acceleration matters. You'll look awfully dumb if you drive a car that sounds fast but loses every race to every Honda. Better to sound stock but be able to slay Vipers.

greatskiiiier

iTrader: (1)

everyone has a different opinion on what they want, speed doesnt matter to everyone so dont push your ideals onto them


but in all seriousness, i agree with atilla, your car isnt going to sound good until you have an exhaust, and if you do the exhaust right youll be happy with the sound