How many hours on your engines?
 

Hours / HP ?

Re: How many hours on your engines?
 

Just over 300 hours on 454/420.

Re: How many hours on your engines?
 

260 hrs on twin 502 mag mpi :rolleyes:

Re: How many hours on your engines?
 

just hit 308 on a 350 omc tonight

Re: How many hours on your engines?
 

502 mag mpi 524hrs

525-1071 blower 5psi boost 165hrs

Re: How many hours on your engines?
 

454 mag - 178hrs

Re: How many hours on your engines?
 

500hp carbs 230 total 50 since rebuilds upper and lower.

Re: How many hours on your engines?
 

454 400hp 840hrs original
1979 excalibur

Re: How many hours on your engines?
 

2900 on my cruisers 427FE Fords.

Re: How many hours on your engines?
 

32 on the Donzi

over 600 on one motor and 450 on the other.

All 330 454's

Jon

Re: How many hours on your engines?
 

0 on my new 540's. 600 on my last boat, 454/400hp.

Re: How many hours on your engines?
 

3 hrs and 600 hp stll not in water yet!!

Re: How many hours on your engines?
 

KE800SC/250Hours+ (i haven't checked this year yet...maybe 10 so far) :rolleyes:

Re: How many hours on your engines?
 

30 on right , 27 on left. Over 700 on my last 454s that ran perfect. shoulda left them alone :mad:

Re: How many hours on your engines?
 

60 on 545's with intercooled 10-71's

Re: How many hours on your engines?
 

110 hours since Sterling rebuild (800SC's)

Re: How many hours on your engines?
 

575sci total hours around 185 i have put 2 on it..
502's in old boat had over hundred on those motors.

Re: How many hours on your engines?
 

150 on Merc 600 SC's

Re: How many hours on your engines?
 

5hrs on a single Blown 540

Re: How many hours on your engines?
 

Re: How many hours on your engines?
 

1993 Powerquest with 454 mag, 480hr and still going strong!

Re: How many hours on your engines?
 

hp 500s 277 hours, only did valve springs at 250

Re: How many hours on your engines?
 

The ol" Cafe had over 1800 hours on her.
Pulled the first set of Cyclone 454 engines at 400 hrs and replaced with a set of 502s. Had 1350 hours on one and the oil pick up fell out of the block and it fried. The other is still running with the person who purchased the boat two years ago with over 1400 hrs.

One of the cyclones went to good use. Was placed into a fully restored 70 454 Chevelle. Now it honks on! Whats cool is the black on black on black with a black Mercruiser Cyclone 400 HP 454!

My present Top Gun Cig with 600's has 177 hours which will change this weekend.

Re: How many hours on your engines?
 

1000+ on my SBC's

Re: How many hours on your engines?
 

500efi and 300 hours, changed springs and other maint at 275hrs

Will :cool: