540 WITH MERLIN HEADS AND HOWARDS CRANK AND RODS? ANY GOOD??
#1
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540 WITH MERLIN HEADS AND HOWARDS CRANK AND RODS? ANY GOOD??
I HAVE RECENTLY BOUGHT A 540 WITH A DART BLOCK, HOWARDS PRO SERIES CRANK, HOWARDE ULTIMATE DUTY RODS, DIAMOND 14.8 PISTONS, MERLIN III AS-CAST HEADS WITH MERLIN X INTAKE AS-CAST, .850-.820 CAMSHAFT, 1150 APD ALKY. CARB.
ANY IDEAS IF THESE HEADS ARE ANY GOOD IN AS-CAST FORM, THEIR WEBSITE SAYS OVER 800HP AS-CAST.
I HAVE NEVER RAN THE HOWARDS STUFF, IT ALL LOOKS GREAT, BUT LOOKS CAN BE DECIVEING AT TIMES......... ANY INPUT ON THIS WOULD BE A HELP.
COMBO IS GOING IN A FRONT SUSPENDED DRAGSTER WIITH A 6000 STALL CONVERTER. EST. 1/8 E.T. I AM HOPING FOR 4.80'S-4.90'S
ANY IDEAS IF THESE HEADS ARE ANY GOOD IN AS-CAST FORM, THEIR WEBSITE SAYS OVER 800HP AS-CAST.
I HAVE NEVER RAN THE HOWARDS STUFF, IT ALL LOOKS GREAT, BUT LOOKS CAN BE DECIVEING AT TIMES......... ANY INPUT ON THIS WOULD BE A HELP.
COMBO IS GOING IN A FRONT SUSPENDED DRAGSTER WIITH A 6000 STALL CONVERTER. EST. 1/8 E.T. I AM HOPING FOR 4.80'S-4.90'S
#4
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Re: 540 WITH MERLIN HEADS AND HOWARDS CRANK AND RODS? ANY GO
Originally Posted by SPEEDNEEDS1
I HAVE RECENTLY BOUGHT A 540 WITH A DART BLOCK, HOWARDS PRO SERIES CRANK, HOWARDE ULTIMATE DUTY RODS, DIAMOND 14.8 PISTONS, MERLIN III AS-CAST HEADS WITH MERLIN X INTAKE AS-CAST, .850-.820 CAMSHAFT, 1150 APD ALKY. CARB.
ANY IDEAS IF THESE HEADS ARE ANY GOOD IN AS-CAST FORM, THEIR WEBSITE SAYS OVER 800HP AS-CAST.
I HAVE NEVER RAN THE HOWARDS STUFF, IT ALL LOOKS GREAT, BUT LOOKS CAN BE DECIVEING AT TIMES......... ANY INPUT ON THIS WOULD BE A HELP.
COMBO IS GOING IN A FRONT SUSPENDED DRAGSTER WIITH A 6000 STALL CONVERTER. EST. 1/8 E.T. I AM HOPING FOR 4.80'S-4.90'S
ANY IDEAS IF THESE HEADS ARE ANY GOOD IN AS-CAST FORM, THEIR WEBSITE SAYS OVER 800HP AS-CAST.
I HAVE NEVER RAN THE HOWARDS STUFF, IT ALL LOOKS GREAT, BUT LOOKS CAN BE DECIVEING AT TIMES......... ANY INPUT ON THIS WOULD BE A HELP.
COMBO IS GOING IN A FRONT SUSPENDED DRAGSTER WIITH A 6000 STALL CONVERTER. EST. 1/8 E.T. I AM HOPING FOR 4.80'S-4.90'S
You'll have no problem getting to that et.
#5
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x2 with Zip on the howards products! We ran them heads back in the day on a 540 they worked well with the combo we had, Your combo has little higher compression, a slightly different camshaft and we were running a team G intake. Motor was in a 3400lb chevelle, its best pass was a 10.10
#9
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I have ran the 454-R many times on several different engines and rthey all ran well, but the Merlin X is a new design and the same brand as the heads so I thought that the Merlin would better than the 454-R.
#10
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Originally Posted by SPEEDNEEDS1
I have ran the 454-R many times on several different engines and rthey all ran well, but the Merlin X is a new design and the same brand as the heads so I thought that the Merlin would better than the 454-R.