I have 2 cam options for my 10.5 .060 over 454. It has 781 heads with 2.19/1.88 valves, 1.71 roller rockers, Dual plane manifold, Quadrajet.1 3/4 headers, HEI .

Engine wIll be used in 69 chevelle convertible for strip/street fun. Aiming for TH 350 (or possibly TKO 5 speed) and 373 gears.. Loosely following the BSE formula.

1. Grind No./Type
Z-45 SOLID Strong mid-range performance. Lopey idle. 2500 RPM Stall. 3
70-4
11 axle ratio. 650-750 CFM Carb. 10.5
1 compr. RPM-Range
2500-6500 Valve Lift - INT
.530 EXT
.530 Valve Lash Hot - INT
.018 EXT
.018 ADV Duration - INT
278° EXT
278° .050 Duration - INT
240° EXT
240° Lobe Center
108°

2. Grind No./Type
292-MEGA HYDRAULIC High performance use/bracket racing. Rough idle. 2800 Stall. 10-11
1 & up compr.4.11-4.56 axle ratio. Up to 780 CFM Carb. RPM-Range
2800-7000 Valve Lift - INT
.590 EXT
.590 Valve Lash Hot - INT
.000 EXT
.000 ADV Duration - INT
292° EXT
292° .050 Duration - INT
244° EXT
244° Lobe Center
108°

Votes?????

Joe

I'm a solid cam sorta guy so I vote for it!

And you know they are totally different cams, spec-wise so you may want to zero in on two closer spec'ed matched cams to choose between, imho...

Isky's 280 Mega on 108 centers should "better" match the Z-45. I don't look much bigger then these two so you will need to look over what's offered to match the 292 Mega cam in a solid..

It might be a Z-60??????

pdq67

One thing I might like to mention here... And that is the idle of these cams. The solid one does have a nice lope to it but not really rough...The 292 hyd will have a rougher idle than the solid cam will.If you are running a stock OE type Qjet ( especially if it's a later emmissions carb) then the idle circut could " possibly " be abit too lean to really work well with these cams.The 292 especially wont likely be idleing with any much more than 11 in of vac if that.

The reasoning between these 2 cams is that I have one of each, and I am wondering which would be better/stronger.

My Q-jet is an older worked version - plus I have a Holley 750 Vac Sec that I can try.

Joe