Pure Stock Drag Racing tips & tricks

[YENKO DEUCE REGISTRY]

That's the '182 cam! That's what is going in over the winter [img]/ubbthreads/images/graemlins/naughty.gif[/img]

[Salvatore]

Good going Marlin! Is Day-2 beginning to rub off on Ya? It is a shame that we can't find very early NOS LT1 cams, because they really worked. The GM LT1 short block we installed in 1972 in my 69 nova was a killer. When that cam hit around 2600 rpm's it snapped to 7000 rpm like you had nitros. Chevy does not grind the cams like that any more it seems. Marlin, Those original LT1's and 1970 Yenko's beat many a big block cars. I was there first hand! Horse Power per cubic inch...Nothing [img]/ubbthreads/images/graemlins/no.gif[/img] out performs a SMALL block chevy!! [img]/ubbthreads/images/graemlins/biggthumpup.gif[/img] Sam

[Salvatore]

Thanks Rob. The next 302 we build I am going to do a little more research on cams. They seem to be different compared to years ago. I just have to watch how much duration because I want my power brakes to work. Also I don't want to put a 5:13 rear in my car. Like we said before, it is really about the whole combination. Sam [img]/ubbthreads/images/graemlins/[/img]

[Chevy454]

[ QUOTE ]
Good going Marlin! Is Day-2 beginning to rub off on Ya?It is a shame that we can't find very early NOS LT1 cams, because they really worked. Chevy does not grind the cams like that any more it seems.

[/ QUOTE ]

Not sure I'm following you, Sam? Crane offers blueprint cams to replace the LT-1 cam, 30/30 cam and the Off Road cam...wasn't their only 1 cam offered in the LT-1? Not trying to get smart, but I must be a page behind! [img]/ubbthreads/images/graemlins/grin.gif[/img]

I think it would be safe to say the Crane units are good units, and they are ground identical to the original units. Whether you pick up an NOS cam or a Crane blueprinted unit, they should be the same except for their age. I've been nothing but happy with my "143" from Crane, and I think it would be safe to say that Pete likes his Crane units as well.

[Salvatore]

Rob, I am not unhappy with my Crane Cam. What I am saying that there was a difference in the early years. The spec cams and the new G.M. cams do not seem to have the pull and strength through the rpm range as do the old cams. The snap just doesn't feel like it is there. I have the same engine builder as I did 30 yrs. ago and we all agree. The seat of the pants feeling just don't seem to be the same, with all things being equal. Ask some more old timers, I think they might agree with this. Just my 2 cents. Sam

[Schonyenko2]

Without trying to start any spitting matches, and fully agreeing with Rob on the spec comparison, and being fully qualified as an old timer, I kinda agree with Sam. Englers red deuce is a dead nuts rebuild of an LT/1. Even has Ross pistons, and I don't believe its as fast as my original deuce. Then again maybe its just my oldtimers kickin up. Schonye

[Salvatore]

There was a difference. The only thing is that you probably just had to have been there. The snap doesn't seem to be there. Whatever [img]/ubbthreads/images/graemlins/dunno.gif[/img]

[Chevy454]

So, what's the difference? Headers then, manifolds now, or vice versa? Trannys? Got an original LT-1 cam? Would be cool to get an "early LT-1 cam" on a cam doctor see what's up.

[Salvatore]

Wish I had an original cam, or early NOS LT1. I would put it in the short block we are am building now. Headers do help, manifolds are restrictive. Wide ratio trans. also get you out of the hole better. Did any body ever really check a spec cam? Lift and duration, lobe centers, ramp speeds, are they really what they say they are. I never personally checked a spec cam from Crane. I just took there word for it being a 1969 302 spec cam. I am going to pay more attention to what cam we use in this motor. Maybe try a different cam company.

[YENKO DEUCE REGISTRY]

I still have my original cam, is it useful for spec'ing against a new Crane? It's got 99k miles on it [img]/ubbthreads/images/graemlins/grin.gif[/img]