LTZCrew

if it shows any signs of having a weak spot it will be tore down and re built for sure, this was just going to be a little bump for the next year or two, using parts i can grow into. now with a 10-71 being longer, this may be a dumb question but i should just be able to put a crab cap on my existing distributor?

LTZCrew

has any one had experince with the Comp cams 525efi replacement cam? pn 01-446-8 wondering if it will make any noticeable difference over the 741/525 cam in a boosted 502 application
comp specs
610/627
@ .050 in. (Deg)
235/243
Duration Advertised
289/297

Baja Rooster

iTrader: (1)

The Comp EFI cam is near identical to the 741 but with the 14* LSA instead of the 12* on the Crane. You wouldn’t feel the difference in the boat but with everything else equal I’d take the 14*LSA.

LTZCrew

does any one know the stock dish and how deep the stock pistons sit? trying to see how many points of compression im going to loose with the new heads

LTZCrew

another newb question!
cam bearings

when doing a top end or a cam swap. do you replace the bearings? - condition pending of course
but if they are clean and and in good shape, do you change them out with a cam swap?

Griff

I have never changed out cam bearings on a top end refresh with cam swap and never had an issue.
As long as the cam you take out looks good, I'd leave them.

mike tkach

iTrader: (3)

i would inspect the cam bearings but i doubt they need to be replaced.

JRider

iTrader: (1)

That cam is fine. Are you going with diffetent heads? Your gains will be primarily be on the exaust side of them, the intake side of the head will not be worth much. So, with raised port height of good heads you will need to worry about tails lining up to the transom holes. Your limiting factor will be the stock injection. Sick of thumb typing, til tomorrow

LTZCrew

afr CNC 305 heads cut down a little to get the chambers close to stock and clean up some damage in a port. the exhaust port is raised slightly(.375") but i think its small enough i should be ok. going with a Eddie young fuel plate then plumbing it the same way Whipple goes on the 500/525efi set ups

JRider

iTrader: (1)

Eddies injection is a smart move, you could possibly go a little bigger on the cam. The next restriction would be the throttle bodies.