does anyone know if edel rovals will have a problem working with trw l2349 pistons? they have a .250 dome ,and have been cut for extra intake valve releif currently using them with 049 open chambers . i know these are closed chamber pistons but thought i heard the rovals wont work with a big dome thanks ray

The Edelbrocks have the spark plug moved towards the center of the chamber which interferes with some domes. A .250 dome doesn't sound all that aggressive, but I don't know for sure it will work.

I'm planning to run Probe P2465F's with my Rovals so I'm about to find out if it works also... I think the 2465's have a 0.21 dome.

Kinda doubt it, SRP had to redesign a short dome piston to fit those chambers. The TRW's are probably thick enough in the dome area to modify to fit, though.

Think the SRP's are a true open chamber design piston whereas the TRW's are designed to fit in closed chamber "bathtub: chambers. I have the hypereutectic H693CP with my Ede/GM heads. Think these are about .250 dome also. When I clayed the pistons, there was no sign of interference at any point except for a small area from the 2.25" intake valves in the stock piston valve relief.

Edit - I just looked up the L2349. Those are the true closed chamber bathtub style .210 domes. These will work with plenty of clearance.

I'm using the trw-2465 piston and the GMPP version of the Roval EDE's. 110cc chamber. My pistons were cut for valve clearance, however, so I don't know how much effect that had on piston to head clearance. The deck is cut -.020 to put the piston -.005 in the hole. My calculations put it at 10.4 to 1 compression after cc'ing the new piston dome. I'm also using a .039 gasket, but I did set the head on the block without the gasket and didn't have any piston touching the head.

I have GMPP heads. I have a set (wrong bore size) semi open SRP's that fit the chambers but would not give me the compresion I wanted. I had a machine shop convert the heads to fully open chambers, taking material of in spots that reduce the secondary quench area and laying back material around the side of the intake valve. I run SRP 28 cc domes now. I was hoping to help the heads breath, but who knows for sure. It was one of the better performance shops in my area that did the work and re cc-ed the heads. they opened them up to 118CC

According to the Speed Pro performance catalog, the 2349s have a .210 dome. I'm currently running 2465s w/.215 dome and Edelbrock RPM ovals. No modifications anywhere and plenty of clearance at head and valves.

According to the Speed Pro performance catalog, the 2349s have a .210 dome.

It depends on what overbore pistons you are using.

Standard bore pistons have .265" (30.6cc) dome, .030" overbore has .221" (29.4cc) dome and .060" overbore has .210" (27.9cc) domes.

thanks for the replys guys. deal on the heads fell thru anywas. good info though. ray