89L98TPI's new 434 SBC
#21
Safety Car
Thread Starter
Thanks for the pictures, that is a beast and should make any Corvette happy.
Do the Vertical Gas Ports really help these motors seal their piston rings better? Is there a limit to ho much compression they can handle? I had never seen them before, I must be out of touch or just getting old....
Thanks again!
Do the Vertical Gas Ports really help these motors seal their piston rings better? Is there a limit to ho much compression they can handle? I had never seen them before, I must be out of touch or just getting old....
Thanks again!
There is no limit to the compression they can handle.
We use them in as many applications as we can get the customer to pay for the expense honestly... ring seal is HP. Sometimes we use vertical like you see here and sometimes lateral. Vertical gas ports are more efficient but typically used in short duration engines like drag racing and endurance engines typically use lateral gas ports. This "application dependent" use is due to carbon build up on the piston top which can block the vertical gas ports, however with this one being set up for E85 fuel, I felt it would be fine with vertical ports on the street.
Will
Last edited by rklessdriver; 10-17-2018 at 01:58 PM.
The following users liked this post:
ctmccloskey (10-18-2018)
#23
Update... Alternator and Vacuum pump mounted. About ready to install for final time.
Stock Motor mount "towers" and stock rack and pinion mounts cut off Kmember... Pinto rack mounts welded on and new steering shaft made to connect. Half @ss paint job in the cold....
To be continued....
#27
Safety Car
Thread Starter
#29
Le Mans Master
Can't believe I missed this thread and Jesus the intake ports and valves in those heads! A legit nitrous motor, I love it. I wish I was your neighbor, Will...
Last edited by 1985 Corvette; 03-29-2019 at 09:25 PM.
#30
Race Director
Nice build Will.
#32
#37
Didn't wanna deal with the headache of pulling all the EFI stuff from car to make a few pulls on engine dyno. We will be at the drag strip shortly and let the time slip do the talking. 9s NA should do the trick!
#38
Race Director
#40
Le Mans Master
….. Sounds Great ! … Keep us posted … what does your car weigh ? …..