Will compression increase w/ stroker?
Thread Starter
TECH Veteran
Joined: Aug 2002
Posts: 4,055
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From: Hartsdale, NY
Will compression increase w/ stroker? My current cylinder heads have a 60CC chamber and yeild an approximate 11.2 to 1 compression ratio with the 346CI stock bottom-end.
If I swap out the bottom-end for a 383 stroker with flat top pistons, and use my existing 60CC heads will my compression ratio increase - all other things being equal (the same)?
In other words, will my stroker have to have dished pistons if I want to build a pump-gas friendly street car motor?
If I swap out the bottom-end for a 383 stroker with flat top pistons, and use my existing 60CC heads will my compression ratio increase - all other things being equal (the same)?
In other words, will my stroker have to have dished pistons if I want to build a pump-gas friendly street car motor?
Adkoonerstrator
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From: Deep in the seedy underworld of Koonerville
Yes, the compression will raise without dished pistons or a piston that sits further down in the bore.
Adding the 4" crank with flat top pistons with the same deck height will put you up around 12.3:1 cr.
If you get pistons with a 7cc valve reliefs that'll bring you back to around 11.2:1 cr with the 4" crank.
Adding the 4" crank with flat top pistons with the same deck height will put you up around 12.3:1 cr.
If you get pistons with a 7cc valve reliefs that'll bring you back to around 11.2:1 cr with the 4" crank.
