273 302 318 340 build
Thanks again all for the responses Decision time, I can get a pair of heads.
Scenario A
Price with valve job and a cleanup on the surdace. $560.
I have a set of valves for one head in good shape. PLUS I have 3 used sets from other 3 heads. Which I hope would be enuf to come up with a set for 2nd head. Above valves are all stock 1.78 int and 1.50 ex.
OR
Scenario B
Purchase heads and valve job (same $$ $560)
I get them to cut valves bigger 1.8805 Intake and 1.60 Ex. Price for valve job would be pretty much the same $230/pr. BUT I have a good pr of dressed heads casting #3671587 that have 1.88 INT and 1.60 EX.
So is it worthwhile to go bigger valves with the stock bottom end? Im thinking no. But im open to suggestions.
$560 plus a cam puchase I am now into the $1000 range. Without even touching the pistons.
SCENARIO C.
Invest in Commando pistons for 273??
Kanter has the commando pistons a little over $420 US= $600 Can (approx) shipped.
I removed oil pump. Krazykuda did a diy on the oil pump so I'll check that out...and ponder the budget lol
Also here is chart from a mopar sb engine book that shows the machining tolerances on heads compared to intake.
Chart shows it starting at .020" Can I then assume head could be milled 0.015" (assume safely) without needing to machine intake?
Thanks again all.
Thanks again all for the responses Decision time, I can get a pair of heads.
Scenario A
Price with valve job and a cleanup on the surdace. $560.
I have a set of valves for one head in good shape. PLUS I have 3 used sets from other 3 heads. Which I hope would be enuf to come up with a set for 2nd head. Above valves are all stock 1.78 int and 1.50 ex.
OR
Scenario B
Purchase heads and valve job (same $$ $560)
I get them to cut valves bigger 1.8805 Intake and 1.60 Ex. Price for valve job would be pretty much the same $230/pr. BUT I have a good pr of dressed heads casting #3671587 that have 1.88 INT and 1.60 EX.
So is it worthwhile to go bigger valves with the stock bottom end? Im thinking no. But im open to suggestions.
$560 plus a cam puchase I am now into the $1000 range. Without even touching the pistons.
SCENARIO C.
Invest in Commando pistons for 273??
Kanter has the commando pistons a little over $420 US= $600 Can (approx) shipped.
I removed oil pump. Krazykuda did a diy on the oil pump so I'll check that out...and ponder the budget lol
Also here is chart from a mopar sb engine book that shows the machining tolerances on heads compared to intake.
Chart shows it starting at .020" Can I then assume head could be milled 0.015" (assume safely) without needing to machine intake?
Thanks again all.
