solid roller in 429/460?

[mdross1]

Anybody running a solid roller cam in your 385? Looking for the sound (sewing machine) and the way these cams make the motors spin,quick rpm rise.Looking for suggestions or problems.

[blykins]

Pretty common for the higher horsepower engines I do.

Have your heads been worked on at all? The only issue with going with a larger cam is that you can potentially move the powerband out of the range of the cylinder heads. When you shift the curves to the right with a mismatched cam, you lose bottom end and then you lose top end both.

The other issue with a solid roller is the longevity. It's not much of a problem in a "toy car", but even the best solid roller lifters are recommended to be inspected/changed every 7500-10000 miles.

With that being said, I can pull to 6500 with a hydraulic roller and the correct valve springs. Any cam with a curve focused on the mid/upper rpm range will make an engine feel like it's "coming on" harder.

Check out the video of one of my 529ci engines with a hydraulic roller....as you can tell, it wants to come on hard at the end. It's the one at the very bottom of the page.

B2 Motorsports LLC

[mdross1]

Other than port match and bowl cleanup no.Our car does not get driven much because of all the other summer things we do aka motorcycles and antique JD tractors.The cam in the motor now is a Lunati .235 @ .050,.560 lift, 104 cL works great.The plan is to pull the top end off the motor and polish everything while in that deep the cam change was a natural.Will study the power curves more and see what might work the best for me same goes for the type of lifter solid or stay with hydraulic.

[keane]

Mike, I run a solid roller in my 545, its a comp xr292, trick flow streets ported heads, around 11-1, Victor and 1050 dommi, just changed out the sidepipe inners for 3" perforated tube, it does sound pretty good in my humble opinion, I had problems with a solid FT cam wipeout and building in a confined single garage I made the decision to go solid roller, couldn't face the trauma of more problems!! seems to be all good at present. Dave

[mdross1]

Originally Posted by keane

Mike, I run a solid roller in my 545, its a comp xr292, trick flow streets ported heads, around 11-1, Victor and 1050 dommi, just changed out the sidepipe inners for 3" perforated tube, it does sound pretty good in my humble opinion, I had problems with a solid FT cam wipeout and building in a confined single garage I made the decision to go solid roller, couldn't face the trauma of more problems!! seems to be all good at present. Dave

Dave,my motor has the Ford Motorsports aluminum heads port matched with Edelbrock Performer RPM and 1000cfm dbl pmp.Tubular Automotive custom built racing headers,out through under car 2 1/2" exhaust. When the mood strikes plan to do the cam change and maybe step up to a single plane manifold.Will study the torque curves of potential rollers to be sure we get it right.Mike

[keane]

Mike, will have mine back on a rolling road soon, will post the figures/graphs then, I had it on a few months back but the throttle linkage wasnt opening the secondaries after around 4800 rpm, but at that stage it was 517 hp, and 730 tq, I have modified the pipes since then to breathe better so should be interesting when I do a reshow, I am touring in the New england area mid June with the wife on a Harley, we do it every year different parts, anything going on between 16-30 June car wise? Dave

[mdross1]

Originally Posted by blykins

Pretty common for the higher horsepower engines I do.

Have your heads been worked on at all? The only issue with going with a larger cam is that you can potentially move the powerband out of the range of the cylinder heads. When you shift the curves to the right with a mismatched cam, you lose bottom end and then you lose top end both.

The other issue with a solid roller is the longevity. It's not much of a problem in a "toy car", but even the best solid roller lifters are recommended to be inspected/changed every 7500-10000 miles.

With that being said, I can pull to 6500 with a hydraulic roller and the correct valve springs. Any cam with a curve focused on the mid/upper rpm range will make an engine feel like it's "coming on" harder.

Check out the video of one of my 529ci engines with a hydraulic roller....as you can tell, it wants to come on hard at the end. It's the one at the very bottom of the page.

B2 Motorsports LLC

Sounds good,I personally have always been drawn to solid lifters partly because of the sweet sound they make adjusted properly,and knowing your getting all the cam can give all the time.