MILD THUNDER

iTrader: (3)

I'd definitly double check the merlin part #'s, if possible. The #030620 was a 320CC intake runner, iron head. The 030630, was a 345cc intake runner iron head.

Was there a "b" or "C" after the "1-043" stamping? The B would be 320cc, C would be 345.

Full Force

iTrader: (5)

The only numbers on the heads were the ones I posted, no 6 digit numbers anywhere, if they were there I would have known for sure what they are...

MILD THUNDER

iTrader: (3)

Ok. Was just checking, tryin to help save ya some work. Seems like you've got it figured out.

Full Force

iTrader: (5)

Thx, thats the part that sucks, there is no true way to tell on these unless I CC em... I took a guess back in the day... was wrong most like;ly..oops

Car Biz

iTrader: (1)

Sorry i forgot to post back.

My manifolds are Kodiak Alum with an IMCO riser. when i had them built in 09 we used a set of IMCO powerflows.

Car Biz

iTrader: (1)

This is the reason i had mine dynoed again. Just to see if any more power was left on the table. I found out i need to port my heads and do a cam change and that is what would be expected out of mine.

Full Force

iTrader: (5)

Ok, so I put same engines in my new ride (35 Mistress) that is a ton heavier, only lost 2 mph and gained 3-400 rpm with same props...I saw 63mpoh@4900 and thats aboput where these cams are done... I am thinking with custom roller cams I can grab a few more hp out of em...