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Cost Differential 468 vs 505?

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Cost Differential 468 vs 505? Empty Cost Differential 468 vs 505?

Post  Dark Horse of Apocalypse August 12th 2014, 3:06 pm

A 509 can be built from a stock bore(429-460 block) +.060, assuming forged pistons( pump gas friendly 10.7:1 with ported FMS SCJ aluminum heads) rods(6.8 inch) & crank(4.15) would this cost much more than a 468 stock block with forged rods & crank?

With a moderate cam, single plane intake, and a 1050 Holley carb would the above stroker be able to make 600-680 hp & tq at around 5800 or 6200 rpm?
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Post  514Fox87 August 12th 2014, 3:49 pm

I blew up engine this April and will share what it has cost me. I had a stock stroke .030 over with A429 heads full ported, custom roller cam. I either broke a wrist pin or piston. Rod thru pan, cap through pan rail. Able to save block, cam and heads. I could have built a stroker MUCH cheaper then what it cost me to put this back together. But I didn't want to build a stroker engine with the heads I have so I decided to put it back together with stoke stroke. I had a 429 truck crank offset ground to 3.85 stroke and 2.200 rod journal. $510 I had GRP make me a set of aluminum rods. $1354. I had Diamond make custom pistons, 4.393 bore with a 15 cc dome and .165 wall tool steel pins no rings. $1184. So just for the money I have in rods, pistons and rings I could have bought a stroker. With bearings and rings included. But that wasn't the way I wanted to go. Just sharing my experience.
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Post  Dark Horse of Apocalypse August 12th 2014, 4:03 pm

Sorry to hear you blew your motor. Thanks for your experiences though.
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Post  bbf-falcon August 12th 2014, 6:04 pm

514Fox87 wrote:I blew up engine this April and will share what it has cost me.  I had a stock stroke .030 over with A429 heads full ported, custom roller cam.  I either broke a wrist pin or piston.  Rod thru pan, cap through pan rail.  Able to save block, cam and heads.  I could have built a stroker MUCH cheaper then what it cost me to put this back together.  But I didn't want to build a stroker engine with the heads I have so I decided to put it back together with stoke stroke.  I had a 429 truck crank offset ground to 3.85 stroke and 2.200 rod journal.  $510 I had GRP make me a set of aluminum rods.  $1354.  I had Diamond make custom pistons, 4.393 bore with a 15 cc dome and .165 wall tool steel pins no rings.  $1184.  So just for the money I have in rods, pistons and rings I could have bought a stroker.  With bearings and rings included.  But that wasn't the way I wanted to go.  Just sharing my experience.

Melvin,I take it that you already had the steel crank too get off for just $510?

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Post  514Fox87 August 12th 2014, 8:19 pm

I had one that the shop ground without checking first. Turns out it was cracked. He had the crank and did the work for 510 including the crank. I got off really cheap on that deal.
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Post  Dark Horse of Apocalypse August 13th 2014, 5:51 pm

Lunati sells a 4.16 inch stroker crank for around $700-800. This with a +.060 Overbore would give me a 511.


Last edited by Dark Horse of Apocalypse on August 13th 2014, 6:36 pm; edited 1 time in total (Reason for editing : I kan't spell)
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Post  bigblok2000ranger August 13th 2014, 6:06 pm

When I built my 523 it was within $200 dollars to build a stroker vs. a stock stroke deal.

If you can't make 650 with what you outlined something is wrong.
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Post  kjett August 13th 2014, 9:59 pm

Are you ci limited? If not and you are getting everything anyways, why not go to the forged 4.3 or 4.5 stoke crank and get the bigger motor. Just a thought unless you really want a small ci deal.
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Post  Dark Horse of Apocalypse August 14th 2014, 9:27 am

bigblok2000ranger wrote:When I built my 523 it was within $200 dollars to build a stroker vs. a stock stroke deal.

If you can't make 650 with what you outlined something is wrong.

kjett wrote:Are you ci limited? If not and you are getting everything anyways, why not go to the forged 4.3 or 4.5 stoke crank and get the bigger motor. Just a thought unless you really want a small ci deal.

I understand a stock block 429-460 will go out to 557 CID but why start there let the engine grow as needed. Bu then move on to build a 511 to start out with then maybe a 557 later.
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